Where does “زوان” come from?

زوان (Laki) comes from Proto-Iranian *hijwáH, from Proto-Indo-Iranian ȷ́iȷ́ʰwáH, from Proto-Indo-European dn̥ǵʰwéh₂s — tongue.

زوان (Laki): tongue; language

Definitions

Step	Language	Word	Meaning
1	Proto-Iranian	*hijwáH	—
2	Proto-Indo-Iranian	ȷ́iȷ́ʰwáH	tongue
3	Proto-Indo-European	dn̥ǵʰwéh₂s	tongue

زوان — Etymology, Origin & Word History | Etymology Explorer