The Ossetian (Iron) word хур
Word хур
IPA χur
Meaning sun
See also Avestan: hvarə ‘sun’

Other words that might be of interest
мæй ‘moon’, стъалы ‘star’, æврагъ ‘cloud’, мигъ ‘fog’, арв ‘sky’, мит ‘snow’, фæздæг ‘smoke’, арт ‘fire’, æртхутæг ‘ash’