==[[kin-family]]==
- PIE ‘brother’, bhreh2ter- [294], probably denoted not just those with the same father or mother, but anyone belonging to the same ‘clan’, cf. the Gk. phrḗtēr ‘member of a clan-like group’, Lat. frāter ‘brother’, but also ‘member of a religious collegium’ (e.g., the fratres Arvales)
## Web Resources
https://www.indo-european-connection.com/words/brother