The Proto-Indo-European word *hₐeug-
Word *hₐeug-
Meaning to grow, to increase
See also Proto-Indo-European: *hₐeuges- ‘strength’
Proto-Indo-European: *hₐwokséye/o- ‘to grow’
Synonyms *bhel-3, bhlē-, *gʰreh₁-, *bʰeu(hₓ)-, *ĝerha-, *hₐel-, *wredh-

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