The Armenian word elbayr
Word elbayr
Meaning brother
See also Proto-Indo-European: *bʰréhater- ‘brother’
Phrygian: ΒΡΑΤΕΡΕ ‘brother’
Phrygian: ΒΡΑΤΕΡΑΙΣ ‘brother’

Other words that might be of interest
ayr ‘man’, kin ‘woman, wife’, mayr ‘mother’, haw ‘grandfather’, hayr ‘father’, mard ‘man, mortal’, mawru-a ‘stepmother’, skesur ‘mother-in-law’