The Proto-Indo-European word *h₂érkʷo-
Word *h₂érkʷo-
Meaning bow
Synonyms *ank-2, ang-, *tóksom

Comments
Lat. arcus, Goth. arƕ azna, Eng. arwe/arrow, Gk. arkeuthos, Russ. rakita, Polish rakieta, Ltv. ērkšķis, ON ǫ rvar, Umbrian arçlataf