κνώδαξ

Etymology
This word is probably connected to and. Per Derksen, these words derive from or, like 🇨🇬 and 🇨🇬, while Beekes suggests a  origin for all these lemmas.

Noun

 * 1) pin or pivot on which a body or machine turns
 * 2)  sockets in which the axes of a drum turn
 * 1)  sockets in which the axes of a drum turn