The Proto-Indo-European word *h₁ōk̂-us
Word *h₁ōk̂-us
Meaning fast
Synonyms *ar(e)-ĝ-, *bʰris-~bʰers-, *h₂r̥ĝ-rós, *k̂eigh-, *h₂ēhₓtró-, *hₐeĝilos

Comments
Mallory J.P. and Adams D. (2006)