ἀμητρογενής

From LSJ

ὕδωρ δὲ πίνων οὐδὲν ἂν τέκοι σοφόν → by drinking water you would never create anything great

Source

Spanish (DGE)

-ές nacido sin madre ἀ. μόνος ὁ Ἀδάμ Leont.H.M.86.1708A.