συγγεννήτωρ
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
English (LSJ)
ορος, ὁ, ἡ,
A one who assists in generating, common parent, τέκνων Pl.Lg.874c (where it refers to the wife).