Latin word proficio comes from Latin facere, Latin pro-

Detailed word origin of proficio

Dictionary entry	Language	Definition
facere	Latin (lat)
pro-	Latin (lat)	(prefixed to verbs of utterance) in place of, on behalf of. (temporally) prior, fore-. Action directed forward or in front. Advantage. Bringing into being, forth, or into the open. Downward and forward movement. Forward direction, forward movement. Prominence.
proficio	Latin (lat)	I advance, make progress.. I benefit, profit, take advantage.. I depart, set out.. I help, contribute, am useful.

Words with the same origin as proficio