ἰσοῦσθαι
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
Greek > English (Woodhouse Verbs Reversed)
(see also ἰσόω): equal, be equal to, be made equal