The Proto-Indo-European word *prep-
Word *prep-
Meaning to appear
Synonyms *bʰeuh₂- (bʰeuh₂mi [1ps]), *weik-, *kʷek̂/ĝ-, *per-

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

Other words that might be of interest
*derk̂- ‘to look’, *kwo- ‘to seem, see, show’