ἰδίωμα
From LSJ
English (LSJ)
[ῐδῐ], ατος, τό, (ἰδιόω)
A peculiarity, specific property, unique feature, Epicur.Ep.1p.25U., Stoic.2.25, etc.; τὰ τῶν χρωμάτων ἰ. Epicur.Ep.2p.51U.; τῆς πολιτείας Plb.2.38.10; τοῦ νόμου BGU12.18 (ii A.D.); τὸ καθ' αὑτὸν ἰ. τηρεῖν Plb.2.59.2; τὰ περὶ τὴν χώραν, περὶ αὐτοὺς ἰ., Id.2.14.3, 6.3.3; τὸ ἐξαίρετόν τινος ἰ. A.D.Synt.15.19; ἀγαθότητος ἰ. Procl.Inst.133; ὕλης Id.Theol.Plat.5.35; property, φαρμάκου Heras ap.Gal.13.785, cf. Dsc.1.71; of the properties of numbers, Theol.Ar.5,al.; τὸ ἰ. τοῦ ἑνός Dam.Pr.5: special subject, τῆς πραγματείας Sor.1.126. II peculiarity of style, D.H.Amm.2tit., al. 2 idiom, ἰ. Ὁμηρικόν A.D.Synt.157.9. 3 style, παιανικὸν ἰ. Ath.15.696e.