Ηη

indecl., ή, τό
A. h, in others (incl. the Ion.= later general Gr. alphabet) one of the long ē sounds (cf. βῆ βῆ). Described by E. Fr. 382.5, Agatho 4.2.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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