ψύθος

εος, Subst., τό
A. lie, untruth, A. Ag. 478 (lyr.), 999 (lyr., pl.), 1089 (pl.):—in Call. Fr. 184, οὐ ψύθος οὔνομ’ ἔχουσα, ψ. is a Subst. in appos. with οὔνομα.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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