c. 1400, "mutual understanding" (among persons), also (of things) "mutual conformity," from Old French agrement, agreement, noun of action from agreer "to please" (see agree). Attested in English by early 15c. as "formal or documentary agreement, terms of settlement."
supersonic passenger airliner operating from 1976 to 2003, from French concorde, literally "harmony, agreement" (see concord (n.)), reflecting the Anglo-French collaborative agreement that produced it.
late 14c., "pleasing combination of sounds, harmony," from Old French consonance (12c.) "consonance, rhyme" and directly from Latin consonantia "harmony, agreement," from consonantem (nominative consonans) "agreeing in sound," present participle of consonare "to sound together, sound aloud" (see consonant (adj.)).
From early 15c. as "agreement among persons as to facts or opinions." Meaning "accord or agreement of sounds in words or syllables" is from 1580s.
"an agreement between persons or parties," early 15c., from Old French pacte "agreement, treaty, compact" (14c.) and directly from Latin pactum "agreement, contract, covenant," noun use of neuter past participle of pacisci "to covenant, to agree, make a treaty," from PIE root *pag- "to fasten." Related: Paction "act of making a pact."
late 15c., "a covenant or agreement," from French convenance "convention, agreement, convenience," from convenant, present participle of convenir "to come together; join, fit, suit" (see convene). Meaning "conventional propriety" is from 1847.
1854, "a general accord or agreement of different parts in effecting a given purpose," originally a term in physiology; 1861, of persons "a general agreement in opinion;" from Latin consensus "agreement, accord," past participle of consentire "feel together," from assimilated form of com "with, together" (see con-) + sentire "to feel" (see sense (n.)). There is an isolated instance of the word from 1633.
"act of agreement," 1530s, from French agréance, noun of action from agréer "to please, satisfy; take pleasure in" (see agree).