κῆον

From LSJ

μὴ πόνει, ὦ Ξάνθια, ἀλλὰ ἔλθε δεῦρο → Don't keep suffering, Xanthias, but come here.

Source

French (Bailly abrégé)

2ᵉ sg. impér. ao. épq. de καίω.