The Proto-Indo-European word *per-
Word *per-
Meaning to appear, to bring forth
See also Proto-Indo-European: *per- ‘offspring (of an animal)’
Synonyms *bʰeuh₂- (bʰeuh₂mi [1ps]), *weik-, *kʷek̂/ĝ-, *prep-

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

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