ἒ ἔ

A. woe! woe! A. Ag. 1114, etc.; always doubled either once or twice and better written ἐέ (as in cod. Med. of A. and S.), or (where the metre requires an iambus) ἐή S. OC 149; but ἠέ cod. Med. in A. Th. 966.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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