τοῦ δὲ πολέμου οἱ καιροὶ οὐ μενετοί → in war, opportunities won't wait | the chances of war will not wait (Thucydides 1.142.2)
SourceFrench (Bailly abrégé)
gén. sg. de ὁ φώς ou de τὸ φῶς.
Russian (Dvoretsky)
φωτός:
I gen. sing. к φῶς.
II gen. sing. к φώς.