II. prov., παῖς μοι τριτογενὴς εἴη, μὴ τριτογένεια, apptly. of children born on the third or 23rd of the month ("ἀρρενώδεις γὰρ αἱ τοιαῦται γυναῖκες"), Sch.BT Il.8.39, cf. Suid. s.v. τριτογένεια.
Τρι_το-γενής , έος, ἡ, collat. form of foreg., h.Hom.28.4, Orac. ap. Hdt.7.141, Ar.Eq. 1189, IG12.529, al.