The Proto-Indo-European word *wer-
Word *wer-
Meaning to perceive, to give attention to, to observe
See also Phrygian: ΟΡΟΥΕΝΑΝ ‘father’
Proto-Indo-European: *werb(h)- ‘to protect, to oversee’
Synonyms *ghou-, *h₃eu-, *keuh₁-, *kʷei-, *sent-, *(s)pek̂-

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