οὐδενία
From LSJ
Τὸ μανθάνειν δ' ἥδιστον εὖ λέγοντος, εἰ κέρδος λέγοι → It is the sweetest thing to learn from one speaking well, if they speak profitably
English (LSJ)
or οὐδένεια, ἡ, A nothingness, worthlessness, Pl.Phdr.235a, Tht.176c, Ephor.137 J., Plb.34.14.3, Ph.1.477, Ael.NA15.13, etc. (Codd. vary, e.g. in Ph. l.c., οὐδένειαν Pap., -ίαν G, οὐθένειαν cett.)
Russian (Dvoretsky)
οὐδενία: ἡ ничтожество (οὐ. καὶ ἀνανδρία Plat.).