fraternal
Concise Oxford English Dictionary © 2008 Oxford University Press:
fraternal /frəˈtəːn(ə)l/
▶adjective
- 1 of or like a brother or brothers.
- 2 of or denoting a fraternity.
- 3 (of twins) developed from separate ova and therefore not identical.
– derivatives
fraternalism noun,
fraternally adverb.
fraternalism noun,
fraternally adverb.
– origin ME: from med. L. fraternalis, from L. fraternus, from frater ‘brother’.
'fraternal' also found in these Oxford entries:

