ὁμόπτερος
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
ον,
A of or with the same plumage, κίρκος A.Supp.224, cf. Pl.Phdr.256e ; οἱ ἐμοὶ ὁ. my fellow-birds, birds of my feather, Ar.Av.229 : then generally, comrades, fellows, Stratt.78. 2 metaph., of like feather, closely resembling, βόστρυχος ὁ. A.Ch.174, cf. E.El.530 ; νᾶες ὁ. consort-ships (or, as others, equally swift), A.Pers.559 (lyr., but λινόπτεροι is prob. cj.); ἀπήνα ὁ., i.e. the two brothers, Eteocles and Polynices, E.Ph.328(lyr.).