The Old Norse word tré
Word tré
t r
Transliteration tre
Meaning tree
See also Proto-Indo-European: *der-, drew- ‘tree, wood’
Hittite: ta-a-ru ‘wood, tree’
Avestan: drvaēna- ‘wooden’

Other words that might be of interest
stain ‘stone’, erþu ‘earth’, akarn ‘acorn’, jørð ‘earth’, blað ‘leaf’, lauf ‘leaf, foliage’, berg ‘mountain’, eik ‘oak’, smágrjót ‘pebbles’, rót ‘root’, sandr ‘sand’, fræ ‘seed’, sæði ‘seed’, bunta ‘farmer, peasant’