ἀδελφός

English (LSJ)

[ᾰ], (ἀ- copul., δελφύς, Arist.HA510b13; cf. ἀγάστωρ) properly,

   A son of the same mother:    I as Subst., ἀδελφός, ὁ, voc. ἄδελφε; Ep., Ion., and Lyr. ἀδελφεός (gen. -ειοῦ in Hom. is for -εόο), Cret. ἀδελφιός, ἀδευφιός, Leg.Gort.2.21, Mon.Ant.18.319:—brother, Hom., etc.; ἀδελφοί brother and sister, E.El.536; so of the Ptolemies, θεοὶ ἀδελφοί Herod.1.30, OGI50.2 (iii B. C.), etc.; ἀπ' ἀμφοτέρων ἀδελφεός Hdt.7.97: prov., χαλεποὶ πόλεμοι ἀδελφῶν E.Fr.975: metaph., ἀ. γέγονα σειρήνων LXX Jb.30.29.    2 kinsman, ib.Ge.13.8, al.; tribesman, Ex.2.11, al.    3 colleague, associate, PTeb.1.12, IG12 (9).906.19 (Chalcis); member of a college, ib.14.956.    4 term of address, used by kings, OGI138.3 (Philae), J.AJ13.2.2, etc.; generally, LXX Ju.7.30; esp. in letters, PPar.48 (ii B. C.), etc.:—as a term of affection, applicable by wife to husband, LXX To.10.12, PLond.1.42.1 (ii B. C.), etc.    5 brother (as a fellow Christian), Ev.Matt.12.50, Act.Ap.9.30, al.; of other religious communities, e.g. Serapeum, PPar.42.1 (ii B. C.), cf. PTaur.1.1.20.    6 metaph., of things, fellow, ἀνὴρ τῷ ἀ. προσκολληθήσεται, of Leviathan's scales, LXX Jb.41.8.    II Adj., ἀδελφός, ή, όν, brotherly or sisterly, A.Th. 811, etc.; φύσιν ἀ. ἔχοντες, of Hephaistos and Athena, Pl.Criti. 109c.    2 generally, of anything double, twin, in pairs, X.Mem. 2.3.19:—also, akin, cognate, μαθήματα Archyt.1; ἀ. νόμοις Pl.Lg. 683a: mostly c. gen., ἀδελφὰ τῶνδε S.Ant.192; ἡ δὲ μωρία μάλιστ' ἀ. τῆς πονηρίας ἔφυ Id.Fr.925; freq. in Pl., Phd.108b, Cra.418e, al., cf. Hyp.Epit.35: c. dat., ἀδελφὰ τούτοισι S.OC1262, cf. Pl.Smp.210b.