Where does “νήμα” come from?

νήμα (Greek) comes from Ancient Greek νῆμα, from Ancient Greek νέω, from Ancient Greek νάω, from Proto-Indo-European (s)neh₂- — to swim; to float.

νήμα (Greek): yarn

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	νῆμα	That which is spun: thread, yarn; silk; strand of...
2	Ancient Greek	νέω	I swim; I float; I spin
3	Ancient Greek	νάω	I flow
4	Proto-Indo-European	(s)neh₂-	to swim; to float