Where does “tanaide” come from?

tanaide (Old Irish) comes from Proto-Celtic tanauyos, from Proto-Indo-European ténh₂us, from Proto-Indo-European tenh₂-, from Proto-Indo-European ten- — to stretch, to extend.

Ancestry of “tanaide”, step by step

Step	Language	Word	Meaning
1	Proto-Celtic	tanauyos	—
2	Proto-Indo-European	ténh₂us	thin
3	Proto-Indo-European	tenh₂-	to stretch, to extend
4	Proto-Indo-European	ten-	to stretch, to extend

Words derived from “tanaide”

tanaí

Every word from Proto-Indo-European ten- →Every word from Proto-Indo-European tenh₂- →Every word from Proto-Indo-European ténh₂us →