late 14c., "that to which one has recourse for aid or assistance, source of comfort and solace," from Old French resort "resource, a help, an aid, a remedy," back-formation from resortir "to resort," literally "to go out again," from re- "again" (see re-) + sortir "go out" (see sortie).
The meaning "place people go for recreation" is recorded by 1754. Phrase in the last resort "ultimately" (1670s) translates French en dernier ressort, originally a last court of legal appeals.
c. 1400, resorten, "advance, proceed; come or go; return (to a subject or topic); go to (someone) for aid, turn to for protection, mercy, etc.," from Old French resortir "recourse, appeal" (Modern French ressortir), from resort "resource, a help, an aid" (see resort (n.)). Related: Resorted; resorting.