θεοφάνια

τά
A. festival at Delphi, at which the statues of Apollo and other gods were shown to the people, Hdt. 1.51, cf. Poll. 1.34; at Chios, SIG 1064.3 (Halic., i B.C.): generally, θ. ἄγειν τινί Philostr. VA 4.31; θ. θύειν Ael. NA 11.10.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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