The Hattic word paru
Word paru
Meaning bright, shinning
See also Proto N. Caucasian: *pārē ‘lightning’
Greek: φάρος ‘lighthouse’
Synonyms ijaḫ

Comments
*paru in kašparuyah, an epithet of the Sun goddess corresponding lalukkima 'source of light' in Hittite. See Kassian 2010;

Other words that might be of interest
kālapupišēt ‘fireplace’, Eštan ‘sun deity, day’