Where does “-नाक” come from?

-नाक (Hindi) comes from Sanskrit -अक, from Proto-Indo-Iranian -kas, from Proto-Indo-European -ḱos — -y, -ic.

Ancestry of “-नाक”, step by step

StepLanguageWordMeaning
1Sanskrit-अक-er
2Proto-Indo-Iranian-kasCreates deadjectival and desubstantival...
3Proto-Indo-European-ḱos-y, -ic

Words derived from “-नाक”

Every word from Proto-Indo-European -ḱos →Every word from Sanskrit -अक →Every word from Proto-Indo-Iranian -kas →