Expedient
late Middle English: from Latin expedient- ‘extricating, putting in order’, from the verb expedire (see expedite).
wiktionary
From Middle English expedient, from Old French expedient, from Latin expediens (stem expedient-), present participle of expedire(“to bring forward, to dispatch, to expedite; impers. to be profitable, serviceable, advantageous, expedient”), from ex(“out”) + pēs(“foot, hoof”).
etymonline
expedient (adj.)
late 14c., "advantageous, fit, proper to a purpose," from Old French expedient "useful, beneficial" (14c.) or directly from Latin expedientem (nominative expediens) "beneficial," present participle of expedire "make fit or ready, prepare" (see expedite). The noun meaning "a device adopted in an exigency, that which serves to advance a desired result" is from 1650s. Related: Expediential; expedientially (both 19c.).
Expedient, contrivance, and device indicate artificial means of escape from difficulty or embarrassment; resource indicates natural means or something possessed; resort and shift may indicate either. [Century Dictionary]
