Aarttu means “bear” (from Proto-Celtic “*artos”). Aarttu is as well a combination of “eagle” (from Old Norse “ari/ǫrn”) and “Thor” (the God of Thunder). Besides, Aarttu means “guardian of the bear” (from ancient Greek “árktos/ᾰ̓́ρκτος” = bear + “oûros/οὖρος” = guardian).
