πολύϊδρις

ιος, εως, ὁ
A. of much knowledge, wisdom, Od. 15.459, 23.82, Hes. Th. 616, Alc. Supp. 7.7, Ar. Eq. 1068 (hex.); σίττη Arist. HA 616b24, etc.; dat. πολυΐδριδι Sapph. 166.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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