μῆνιγξ

Etymology
The semantic parallel with words like 🇨🇬 and Balto-Slavic words like 🇨🇬, 🇨🇬 and 🇨🇬, all ultimately derived from 🇨🇬, is striking. However, this word cannot be combined with them. The unexplained -ν-, together with the suffix -ιγγ-, clearly points to a word.

Noun

 * 1)  membrane, cuticle
 * 2) membrane of the eye
 * 3) drum of the ear, eardrum
 * 4) membrane enclosing the brain, dura mater
 * 5) scum on milk