Latin word profectus comes from Latin proficio, and later Latin proficiscor (I set out, depart, leave.)

You can also see our other etymologies for the Latin word profectus.

Detailed word origin of profectus

Dictionary entry	Language	Definition
proficio	Latin (lat)	I advance, make progress.. I benefit, profit, take advantage.. I depart, set out.. I help, contribute, am useful.
proficiscor	Latin (lat)	I set out, depart, leave.
profectus	Latin (lat)