ὀφείλειν
From LSJ
λέγεις, ἃ δὲ λέγεις ἕνεκα τοῦ λαβεῖν λέγεις → you speak, but you say what you say for the sake of gain (Menander, fr. 776)
Greek > English (Woodhouse Verbs Reversed)
(see also ὀφείλω): be a debtor, be compelled to, be in debt
Lexicon Thucydideum
debere, to owe, 4.19.3, 4.87.3,
PASS. 1.137.1, 2.40.4, 3.63.4, 3.81.4.