产品沉思录 - 想改变用户行为，或许提示比动机更重要

产品沉思录 - 如何提高你的决策能力：在是与否之间，还可以悬置判断

产品沉思录 - 隐性知识：执行不是搬砖，而是积累我们自己知识的护城河。

产品沉思录 - 便利店之神铃木敏文：永远站在客户立场

产品沉思录 - 为何做减法如此之难：爱做加法真不是产品经理的锅，是人性使然。

产品沉思录 - 对少即是多的误解

产品沉思录 - 人们为何要关心你的品牌

产品沉思录 - 一个容易被忽略的增长关键指标

产品沉思录 - 差异化才是生存的根本

产品沉思录 - 为何知识资本将胜过金融资本

AI课程推荐

产品沉思录 - 如何面对信息过载与分配时间的三种方式

产品沉思录 - 如何像管理金融投资组合一样来管理知识？

产品沉思录 - 意义第一：何谓以学为导向的学习

产品沉思录 - 拒绝信息成瘾，重新思考你和信息的关系

产品沉思录 - 交易平台的金字塔进阶

产品沉思录 - 何谓判断时距？如何如何启动和扩大 Marketplace？

产品沉思录 - 交易平台研究

ChatGPT 弯道超车小抄

48个AI工具分享

产品沉思录 - 世界五大学习方法之西蒙学习法 —— 真的存在么？

DASOU - 垂直领域大模型落地思考

自我告诫 - 2023/11/14

产品沉思录 - 我的人生哲学（三十六岁版）

产品沉思录 - 交易平台何时拥有定价权：初探背后的经济学原理

产品沉思录 - 花园与溪流：建造花园的人将赢得未来

产品沉思录 - Hey.com：如果你没有观点，你就不值得关注

产品沉思录 - 如何管理信息：P.A.R.A. 是什么

产品沉思录 - 用户画像的起源：The origin of personas

产品沉思录 - 我们如何获取信息，组织知识

产品沉思录 - 电子表格的历史：除非你知道它从何而来，否则你将无法预测它将走向何方

产品沉思录 - 聊聊互联网平台的四个效应

产品沉思录 - 真正的思考技术：来自德国社会学 Niklas Luhmann 的 Zettelkasten 方法

产品沉思录 - 从信息差的角度来看：在交易中供需双方谁应该首先提供信息

产品沉思录 - 对接完 115 家医院的需求后，复盘下如何用产品的思路进行募捐

产品沉思录 - 如果不重新发明轮子，那么该如何创新？

产品沉思录 - 基层村医调研：尽本分

产品沉思录 - 关于互联网医院的几点思考：历史会在哪里押韵？

产品沉思录 - 互联网医疗Truepill —— 医药行业的阿里云

产品沉思录 - 任天堂的设计哲学

产品沉思录 - 统计学，最强的商业武器

产品沉思录 - 这压根不是心理学，这是科学！

产品沉思录 - 互联网城市的死与生

产品沉思录 - 在纷杂的世界里，如何有效的获取信息（下）

产品沉思录 - 在纷杂的世界里，如何有效的获取信息（上）

产品沉思录 - 产品的向心力

产品沉思录 - Service Design究竟是个什么鬼！

产品沉思录 - 当我在7-11打工时，我在学什么。Chapter.2

产品沉思录 - 当我在7-11打工时，我在学什么。Chapter.1

产品沉思录 - 即使数学是体育老师教的，你也应该学点统计学

产品沉思录 - 柳比歇夫《奇特的一生》时间统计法总结

产品沉思录 - 时间的成本

共读外刊

老梨 - 你的个人资产负债表衰退了吗？

老梨 - 硬趋势、无拐点、心痒痒，数字经济应该如何正确分析？

老梨 - 财富焦虑的解药，是学会如何“算账”【学校没教的金钱法则】

老梨 - 行业研究万字教程 - 真·新手友好版【极致教程】

认知偏差知识手册

万物皆模型 - 100个思维模型1.0

刘润 - 商业通识30讲

思辨力35讲：像辩手一样思考

如何更好地使用ChatGPT？

AI绘画入门介绍

咖啡记

【私货】创业毒鸡汤

【私货】如何快速学习新领域

卷？如何更高效地卷？

数据分析如何入门？如何做职业规划？

利率的那些事儿

什么是Web3.0

TikTok - 入门指北&工具包

1688 - 店铺诊断【五指法】

1688 - 电商运营必修10堂课

📘单词丨

c. 1200, o cros, "in the shape of a cross;" c. 1300, a-croiz, "in a crossed position;" early 14c., acros, "from one side to another;" a contraction of Anglo-French an cros, literally "on cross;" see a- (1) + cross (n.)).
Meaning "on the other side (as a result of crossing)" is from 1750. In crossword puzzle clues from 1924. Spelling acrost, representing a dialectal or vulgar pronunciation, is attested by 1759. Phrase across the board "embracing all categories" (1945) is said to be originally from horse-racing, in reference to a bet of the same amount of money on a horse to win, place, or show. To get (something) across "make (something) understood or appreciated" is by 1913, probably from earlier theater expression get (something) across the footlights, perform it so as to be received by the audience (1894).

📘单词丨across (adv./prep.)

"elevated part of a Greek city," often the site of original settlement and usually a citadel, 1660s, from Latinized form of Greek akropolis "citadel" (especially, with capital A-, that of Athens), from akros "highest, upper" (from PIE root *ak- "be sharp, rise (out) to a point, pierce") + polis "city" (see polis). The plural would be acropoles.

📘单词丨acropolis (n.)

"morbid fear of heights," 1887, medical Latin, from Greek akros "at the end, topmost" (from PIE root *ak- "be sharp, rise (out) to a point, pierce") + -phobia "fear." Coined by Italian physician Dr. Andrea Verga in a paper describing the condition, from which Verga himself suffered.In this paper, read somewhat over a year ago at the congress of alienists at Pavia, the author makes confession of his own extreme dread of high places. Though fearless of the contagion of cholera, he has palpitations on mounting a step-ladder, finds it unpleasant to ride on the top of a coach or to look out of even a first-story window, and has never used an elevator. [abstract of Verga's report in American Journal of Psychology, November 1888]

📘单词丨acrophobia (n.)

"one suffering from a morbid fear of heights," 1895, from acrophobia; also see -phobe. Related: Acrophobic.

📘单词丨acrophobe (n.)

word formed from the first letters of a series of words, 1943, American English coinage from acro- + -onym "name" (abstracted from homonym; ultimately from PIE root *no-men- "name"). With the exception of cabalistic esoterica and acrostic poetry, this way of forming words was exceedingly uncommon before 20c. For distinction of use (regretfully ignored on this site), see initialism.

📘单词丨acronym (n.)

"gigantism due to activity of pituitary after normal growth has ceased," 1886, from French acromégalie, from medical Latin acromegalia, from Greek akron "extremity, highest point, mountain peak, headland," neuter of akros "at the furthest point" (from PIE root *ak- "be sharp, rise (out) to a point, pierce") + megas "great" (fem. megale; from PIE root *meg- "great"). Said in contemporary literature to have been coined 1885 by French physician Dr. Pierre Marie.

📘单词丨acromegaly (n.)

"of or pertaining to an acrobat or an acrobat's performances," 1848; see acrobat + -ic, probably modeled on French acrobatique. Related: Acrobatically.

📘单词丨acrobatic (adj.)

1859, "acrobatic performances or feats," from acrobatic; also see -ics. Also acrobatism (1864). Acrobacy (1918, from French acrobatie) sometimes was used. Figurative use is attested by 1915.

📘单词丨acrobatics (n.)

1845, from French acrobate "tightrope-walker" (14c.) and directly from a Latinized form of Greek akrobatēs "rope dancer, gymnastic performer," which is related to akrobatos "going on tip-toe, climbing up high," from akros "topmost, at the point end" (from PIE root *ak- "be sharp, rise (out) to a point, pierce") + Greek agential element -batēs "one that goes, one that treads (in some manner), one that is based," from -batos, verbal adjective from stem of bainein "to go, walk, step" (from PIE root *gwa- "to go, come").

📘单词丨acrobat (n.)

word-forming element meaning "highest, topmost, at the extremities," before vowels acr-, from Latinized form of Greek akro- "pertaining to an end, extreme," from akros "at the end, at the top, outermost; consummate, excellent" (from PIE *akri-, from root *ak- "be sharp, rise (out) to a point, pierce").

📗前缀丨acro-

1540s, "quality of being sharp or pungent in taste," from French acrimonie or directly from Latin acrimonia "sharpness, pungency of taste," figuratively "acrimony, severity, energy," abstract noun from acer "sharp" (fem. acris), from PIE root *ak- "be sharp, rise (out) to a point, pierce") + -monia suffix of action, state, condition (see -mony). Figurative extension to personal sharpness or bitterness is by 1610s.

📘单词丨acrimony (n.)

1610s, "acrid," from French acrimonieux, from Medieval Latin acrimoniosus, from Latin acrimonia "sharpness" (see acrimony). Now usually figurative, of dispositions, debates, etc., "bitter, irritating in manner" (1775). Related: Acrimoniously; acrimoniousness.

📘单词丨acrimonious (adj.)

1712, "sharp and bitter to the taste," formed irregularly (perhaps by influence of acrimonious) from Latin acer (fem. acris) "sharp to the senses, pungent, bitter; eager, fierce," also figuratively, of qualities, "active, ardent, spirited," also "hasty, quick, passionate;" of mind "violent, vehement; subtle, penetrating," from PIE *akri- "sharp," from root *ak- "be sharp, rise (out) to a point, pierce." Of feelings, temper, etc., in English from 1781. The -id suffix probably is in imitation of acid. Acrious (1670s) is a correct formation, but seldom seen. Related: Acridly.

📘单词丨acrid (adj.)

"quality of being acrid," 1799, from acrid + -ity. Acridness (1759) is older.

📘单词丨acridity (n.)

"number of acres in a tract of land," 1795, from acre + -age.

📘单词丨acreage (n.)

Old English æcer "tilled field, open land," from Proto-Germanic *akraz "field, pasture" (source also of Old Norse akr, Old Saxon akkar, Old Frisian ekker, Middle Dutch acker, Dutch akker, Old High German achar, German acker, Gothic akrs "field"), from PIE root *agro- "field."
"[O]riginally 'open country, untenanted land, forest'; ... then, with advance in the agricultural state, pasture land, tilled land, an enclosed or defined piece of land" [OED]. In English at first without reference to dimension; in late Old English the amount of land a yoke of oxen could plow in a day, afterward defined by statute 13c. and later as a piece 40 poles by 4, or an equivalent shape [OED cites 5 Edw. I, 31 Edw. III, 24 Hen. VIII]. The older sense is retained in God's acre "churchyard."
The Germanic word was adopted early in Old French and Medieval Latin, hence the Modern English spelling, which by normal development would be *aker (compare baker from Old English bæcere).

📘单词丨acre (n.)

"legal settlement" of a debt, obligation, etc., early 14c., aquitaunce, from Old French aquitance and Medieval Latin acquietantia; see acquit + -ance.

📘单词丨acquittance (n.)

early 15c., aquitaille, "payment of debt or retribution;" see acquit + -al (2). Sense of "a release from debt or obligation" is from mid-15c.; that of "freeing from charge or offense" (by legal process) is from 1530s.

📘单词丨acquittal (n.)

"freed, exonerated," 1670s, past-participle adjective from acquit (v.). Formerly in this sense was acquit (late 14c.).

📘单词丨acquitted (adj.)

mid-13c., aquiten, "repay, reciprocate, reward or retaliate for" (a good or bad deed); c. 1300 as "satisfy a debt; redeem (a pledge)," from Old French aquiter, acquiter "pay, pay up, settle a claim" (12c., Modern French acquitter), from a- "to" (see ad-) + quite "free, clear," from Medieval Latin quitus, quittus, from Latin quietus "free" (in Medieval Latin "free from war, debts, etc."), also "calm, resting" (from PIE root *kweie- "to rest, be quiet"). Also in part from Medieval Latin acquitare.
From mid-14c. as "relieve (someone) of an obligation, release from a pledge," hence the meanings "set (an accused person) free from charges, pronounce not guilty," and "discharge one's duty; behave or conduct oneself" (for better or worse), all of which date to late 14c. The notion in the word is "to release or discharge," from an obligation or from accusation, guilt, censure, or suspicion. Related: Acquitted; acquitting.

📘单词丨acquit (v.)

1630s, "owned through acquisition" (now obsolete, this sense going with acquired), from Latin acquisit-, past-participle stem of acquirere "accumulate, gain" (see acquire) + -ive. Meaning "given to acquisition, avaricious" is by 1824. Related: Acquisitively (1590s); acquisitiveness.

📘单词丨acquisitive (adj.)

late 14c., adquisicioun, "act of obtaining," from Old French acquisicion "purchase, acquirement" (13c., Modern French acquisition) or directly from Latin acquisitionem (nominative acquisitio), noun of action from past-participle stem of acquirere "get in addition, accumulate," from ad "to," here perhaps emphatic (see ad-), + quaerere "to seek to obtain" (see query (v.)).
The meaning "thing obtained" is from late 15c. The vowel change of -ae- to -i- in Latin is due to a phonetic rule in that language involving unaccented syllables in compounds.

📘单词丨acquisition (n.)

"act of acquiring; that which is acquired," 1620s, from acquire + -ment. Perhaps modeled on French acquerement (16c.).

📘单词丨acquirement (n.)

c. 1600, "gained by effort," past-participle adjective from acquire. Of diseases, "occurring after birth, thus not dependent on heredity," 1842 (opposed to congenital); acquired immune deficiency is attested by 1980; acquired immune deficiency syndrome by 1982. Acquired taste is attested from 1734.

📘单词丨acquired (adj.)

"to get or gain, obtain," mid-15c., acqueren, from Old French aquerre "acquire, gain, earn, procure" (12c., Modern French acquérir), from Vulgar Latin *acquaerere, corresponding to Latin acquirere/adquirere "to get in addition to, accumulate, gain," from ad "to," here perhaps emphatic (see ad-), + quaerere "to seek to obtain" (see query (v.)). Reborrowed in current form from Latin c. 1600. Related: Acquired; acquiring.

📘单词丨acquire (v.)

1630s, "rest, quiet, satisfaction," from French acquiescence, noun of action from acquiescer "to yield or agree to; be at rest" (see acquiesce). Meaning "silent consent, passive assent" is recorded from 1640s.

📘单词丨acquiescence (n.)

PIE词源词条

Business

Finance

职业成长

个人成长

课程分享

产品沉思录

个人记录

往期整理

文章分类

文章标签

搜索

感谢

联系我

运营

Tiktok

思考

工具

开发

认知

工作

学习

知识

产品

"brain-sand" (anatomical), 1806, medical Latin, literally "little heap," diminutive of Latin acervus "heap," which is akin to acer "sharp" (from PIE root *ak- "be sharp, rise (out) to a point"). Compare acervate.

词源

词根词缀

英语

单词

📘单词丨acervulus (n.)

password

icon

date

type

slug

status

title

summary

Table

Table (1)

类型为Notice的文章将被显示为公告，仅 hexo和next支持；仅限一个公告

公告

"becoming sour," 1670s, from French acescent, from Latin acescentem (nominative acescens), present participle of acescere "become sour," from acer "sharp" (from PIE root *ak- "be sharp, rise (out) to a point, pierce").

📘单词丨acescent (adj.)

by 1790 in a translation of Fourcroy, "salt formed by combining acetic acid with a base," from Latin acetum "vinegar" (see acetic) + chemical suffix -ate (3). As a type of synthetic material, it is attested from 1920, short for acetate silk (1912), etc.