γλυκύθυμος

ον
A. sweet of mood, Il. 20.467; of the Epicureans, Luc. Herm. 16.
II. Act., charming the mind, delightful, ἔρως, ὕπνος, Ar. Lys. 551, Nu. 705.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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