early 15c., "performance of a task; state of completion," from Old French acomplissement "completion, action of accomplishing," from acomplir "to fulfill, carry out, complete" (see accomplish). Meaning "thing completed" and that of "something that completes" someone and fits him or her for cultivated or fashionable society are from c. 1600.
accompanying
accomplice
accomplish
accomplishable
accomplished
accomplishment
accord
accordance
accordant
according
accordingly