The Proto-Indo-European word *kʷeh₁(i)-
Word *kʷeh₁(i)-
Meaning fear, revere
Synonyms *gʰouro-, *perk-, *dwei-, *hₐénĝhes-

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

Other words that might be of interest
*k̂ehades- ‘hate, concern’