exhilarate (v.) Look up exhilarate at Dictionary.com
1530s, from Latin exhilaratus "cheerful, merry," past participle of exhilarare "gladden, cheer," from ex "out, out of; thoroughly" (see ex-) + hilarare "make cheerful," from hilarus "cheerful" (see hilarity). Related: Exhilarated; exhilarating.