dar

tree, wood, stick

From Avestan dâuru,

Proto-Indo-European root word *deru- or *dreu-, meaning "be firm, solid, steadfast" referring to objects made of wood.

Sanskrit dAru, dru,
Old Ir *daru-,
Greek dory, drys "spear, oak",
Old Church Slavonic drievo "tree, wood",
Serbian drvo "tree", drva "wood",
Russian drevo "tree, wood",
Czech drva,
Polish drwa "wood",
Lithuanian drūtas "firm", derva "pine, wood"
Welsh drud,
Old Irish dron "strong",
Welsh derw "true",
Old Irish daur,
Welsh derwen "oak",
Albanian drusk "oak",
Old English treo, trēow, tre "tree", triewe "faithful, trustworthy, honest"
Pahlawi dar.