Where does “танин” come from?

танин (Kazakh) comes from Russian тани́н, from French tannin, from Latin tannum, from Gaulish tannos, from Proto-Celtic tannos, from Proto-Indo-European dʰonu — fir.

танин (Kazakh): tannin

Definitions

tannin

Ancestry of “танин”, step by step

Step	Language	Word	Meaning
1	Russian	тани́н	—
2	French	tannin	—
3	Latin	tannum	oak bark
4	Gaulish	tannos	—
5	Proto-Celtic	tannos	green oak
6	Proto-Indo-European	dʰonu	fir

Every word from Proto-Indo-European dʰonu →Every word from Proto-Celtic tannos →Every word from Gaulish tannos →