conficio

(conjugation-3, iō-variant) to prepare, accomplish, complete, execute; settle, close a bargain; traverse
(conjugation-3, iō-variant) to produce, cause, bring about, effect, secure
(conjugation-3, iō-variant) to finish, end, spend, pass, complete
(conjugation-3, iō-variant) to procure, bring together, collect, produce, prepare
(conjugation-3, iō-variant) to perform, celebrate
(conjugation-3, iō-variant) to show, deduce, demonstrate
(conjugation-3, figuratively, iō-variant) to diminish, lessen, wear out, consume, exhaust
(conjugation-3, iō-variant) to destroy, kill

From Proto-Italic *komfakjō, from *kom- + *fakjō. Equivalent to con- (“with, together”) + faciō (“do, make”). Compare condō from the same root.