εὐτύχεια

II. Εὐτύχεια,τά, festival in honour of Eutyches, SIG 2588.55 (ii B.C.): sg., Εὐτύχειον,τό, fund devoted to its maintenance, Inscr.Délos 370.44 (iii B.C.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project