ἥμισυς ἡμι- half, Lat. semis, used both as adj. and Subst.: as adj., ἡμίσεες λαοί half the people, Hom.; ἥμισυς λόγος half the tale, Aesch., etc.;—c. gen., like a comp., ἥμισυ οὗ διενοεῖτο half of what he intended, Thuc.:— also with its Subst. in gen., τῶν νήσων τὰς ἡμίσεας half of the islands, Hdt.; αἱ ἡμίσειαι τῶν νεῶν Thuc.; ὁ ἥμισυς τοῦ ἀριθμοῦ Plat. as Subst., neut., ἥμισυ τιμῆς, ἐνάρων, ἀρετῆς Hom.; πλέον ἥμισυ παντός, Hes.; mostly with Art., τὸ ἡμ. τοῦ στρατοῦ Thuc., etc.;—also in pl., ἄρτων ἡμίσεα Xen. fem., ἡ ἡμ. τοῦ τιμήματος Plat.; ἐφʼ ἡμισείᾳ up to one half, Dem.