ἀφρός

Etymology
Formally derived from, with cognates including 🇨🇬, 🇨🇬, 🇨🇬. However, Beekes and Frisk argue that the semantic mismatch does not justify this derivation. See also possibly related but also problematic.

Noun

 * 1) foam, of the sea
 * 2)  foam, slaver, froth