ὦσι

From LSJ

τὸ πολὺ τοῦ βίου ἐν δικαστηρίοις φεύγων τε καὶ διώκων κατατρίβομαι → waste the greater part of one's life in courts either as plaintiff or defendant

Source

French (Bailly abrégé)

3ᵉ pl. sbj. prés. de εἰμί.

Russian (Dvoretsky)

ὦσι: 3 л. pl. praes. conjct. к εἰμί.