1530s, "fit one thing to another," from Latin accomodatus "suitable, fit, appropriate to," past participle of accomodare "make fit, make fit for, adapt, fit one thing to another," from ad "to" (see ad-) + commodare "make fit," from commodus ""proper, fit, appropriate, convenient, satisfactory," from com-, here as an intensive prefix (see com-), + modus "measure, manner" (from PIE root *med- "take appropriate measures").
From late 16c. as "make suitable," also "furnish (someone) with what is wanted," especially "furnish with suitable room and comfort" (1712). Related: Accommodated; accommodating.
