Origin: 1275–1325; Middle English acheven <
Old French achever to finish, from phrase
a chef to (the) head (i.e., to conclusion).
See chief Related formsa·chiev·a·ble, adjective
a·chiev·er, noun
out·a·chieve, verb (used with object), out·a·chieved, out·a·chiev·ing
pre·a·chieved, adjective
su·per·a·chiev·er, noun
EXPANDun·a·chiev·a·ble, adjective
un·a·chieved, adjective
well-a·chieved, adjective
COLLAPSESynonyms 1. consummate, complete; effect, execute; realize, reach.
See do1. 2. realize, win.