χέρνιβα

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)

Source

French (Bailly abrégé)

acc. sg. de χέρνιψ;
acc. pl. de χέρνιβον.

Russian (Dvoretsky)

χέρνῐβα:
I acc. sing. к χέρνιψ.
II (v. l.) nom. и acc. pl. к χέρνιβον.