The Proto-Indo-European word *hₐénsus
Word *hₐénsus
Meaning god, spirit
Synonyms *deiwós, *dʰēh₁-s(-io-), *dhwes-

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

Other words that might be of interest
*k̂wen(to)- ‘holy’, *sakros ‘holy’, *noibʰos ‘holy’