Regrexit

Etymology tree Proto-Italic *wre- Latin re-der. Old French re- Proto-Indo-European *ǵʰreh₁d-der. Proto-Germanic *grētaną Frankish *grātander. Old French *greter Old French regreterbor. Middle English regretten English regret Ancient Greek Βρεττανός (Brettanós) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ίᾱ (-íā) Ancient Greek Βρεττανία (Brettanía)bor. Latin Britannia Anglo-Norman Britainebor. Middle English Britayne English Britain Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ex- Proto-Indo-European *h₁ey- Proto-Indo-European *h₁éyti Proto-Italic *ejō Proto-Italic *eō Latin eō Latin exeō Proto-Indo-European *-tus Proto-Italic *-tus Latin -tus Latin exitusder. Middle English exit English exit blend English Brexit blend English Regrexit Blend of regret + Brexit, said to have been coined on 24 June 2016 by one Carl Gardner in a Twitter post (see quotations) following the United Kingdom European Union membership referendum on 23 June 2016.

1. 01
   derived from exitus — “departure, going out; way by which one may go out, egress; (figuratively) conclusion, termination; (figuratively) death; income, revenue”
2. 02
   inherited from exit
3. 03
   compounded as brexit — “Britain + exit”
4. 04
   compounded as regrexit — “regret + Brexit”