farewell
1. fare.well \fa(*)r-'wel, fe(*)r-\ vp : get along well - used
interjectionally to or by one departing
2. farewell n 1: a wish of welfare at parting : GOOD-BYE 2a: an act of
departure : LEAVE-TAKING 2b: a formal occasion honoring a person about to
leave or retire
3. fare.well \.fa(*)r-.wel, .fe(*)r-\ aj : PARTING, FINAL {a ~ concert}
Webster's English Dictionary