ζύμ-η [ῡ], ἡ,
leaven, [[ 4th c.BC: Aristoteles Philosophus “de Generatione Animalium” 755a18, LXX.Exo.12.15 ] LXX+4th c.BC+]; beer-yeast, [[ PTeb. 375.27 (2nd c.AD)] Refs 2nd c.AD+], etc.: metaphorically, of corruption, falsehood, NT.Matt.16.6, etc. (ζῡ-μᾱ or ζῡσ-μᾱ, cf. Sanskrit yauti 'mix', Sanskrit yūs, Latin jūs 'soup', Lett. jaut 'stir dough', javs 'dough'.)