Liddell–Scott–Jones: εἰν

εἰν, Ep. and Lyr. (metri gr.) forἐν,

A. in, Il. 2.783 , al.; Trag. in lyr., A. Supp. 871 (dub.), E. Alc. 436 ; exc.εἰν Ἅιδου v.l. in

S. Ant. 1241 ; cf.εἰνί; also Schwyzer 707

A 3 (Ephesus,vi B. C.), and in compds.,εἰνάλιος, εἰνόδιος.