ῤάρος
From LSJ
μή μοι θεοὺς καλοῦσα βουλεύου κακῶς· πειθαρχία γάρ ἐστι τῆς εὐπραξίας μήτηρ, γυνὴ Σωτῆρος· ὦδ᾽ ἔχει λόγος → When you invoke the gods, do not be ill-advised. For Obedience is the mother of Success, wife of Salvation—as the saying goes.
English (LSJ)
ὁ, a word found only in Gramm., expid. as = γαστηρ in EM 702.37, Suid.; as Aeol. for ἔμβρυον in Sch.D.T.p.143 H.; as
A = ἀμβλωθρίδιον βρέφος in Lex. de Spir.p.215 Valck.; as = ἰσχυρός (cf. ῥωρός), Hsch., Phot., Suid. [The breathing is smooth, as in Ρᾶρος, Sch.D.T. and Lex. de Spir. ll. cc.]