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φῶ

Ἔρως ἀνίκατε μάχαν -> O love, invincible in battle!
Sophocles, Antigone, 781

French (Bailly abrégé)

φῇς, φῇ, φῶμεν, etc.
sbj. prés. de φημί.

Russian (Dvoretsky)

φῶ: praes. conjct. к φημί.