I.to take one from another, to cleave in twain, to divide into parts, Il., Hdt.; δ. λαγόν to cut it open, id=Hdt.; δ. πυλίδα to break it open, Thuc.; δ. τὴν ὀροφήν to tear it away, id=Thuc.; δ. τοῦ τείχους to take down part of the wall, make a breach in it, id=Thuc.; τὸ διῃρημένον the breach, id=Thuc.
II.to divide, δύο μοίρας Λυδῶν the Lydians into two parts, Hdt.; so, δ. τριχῆ Plat.; εἰς δύο Dem.:—Mid. to divide for themselves, ναῦς Thuc.: but also to divide among themselves, Hes., Hdt.:—Pass., διῃρημένοι κατ᾽ ἀναπαύλας divided into relays, Thuc.
2.to divide into component parts, Plat.
III.to distinguish, Ar.
2.to determine, decide, Hdt., Aesch., etc.
3.to say distinctly, to define, interpret, Hdt., attic