τριέσπερος

ον, Subst.

ἑσπέρα

A. in three successive nights, ὄνειρος Luc. Somn. 17, Gall. 12.
2. τ. λέων, i. e. Heracles, who was begotten in a triple night, Lyc. 33; Subst., ἡ Ἡρακλέους τ. the triple night, Alciphr. 3.38.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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