Lewis & Short

prŏfectĭo, ōnis, f. [proficiscor].

  1. I. Lit., a going away, setting out, departure (class.): profectione laeti, Pac. ap. Cic. Div. 1, 14, 24: profectio et reversio alicujus, Cic. Phil. 1, 1, 1: profectionem parare, to prepare for setting out, Caes B. C. 1, 27. Cethegi profectio in Hispaniam, Cic. Sull. 25, 70; id. Fam. 2, 16, 6; Liv 2, 14; 38, 59.
  2. II. Transf., of things, the source whence any thing is obtained: profectio ipsius pecuniae requiratur, Cic. Clu. 30, 82.