Agreeable

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late Middle English: from Old French agreable, from agreer ‘make agreeable to’ (see agree).

wiktionary

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From Middle English agreable, from Old French agreable; displaced native Old English cweme(“pleasing, agreeable”). Equivalent to agree +‎ -able.

etymonline

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agreeable (adj.)

late 14c., of things, "to one's liking, pleasant, satisfactory, suitable," from Old French agreable "pleasing; in agreement; consenting" (12c., Modern French agréable), from agreer "to satisfy; to take pleasure in" (see agree). Of persons, "willing or ready to consent," mid-15c. Related: Agreeably; agreeability; agreeableness. To do the agreeable (1825) was to "act in a courteous manner."