adjective see: brother Date: 15th century 1. of, relating to, or involving brothers, of, relating to, or being a fraternity or society , derived from two ova ; dizygotic , friendly , brotherly , ~ism noun ~ly adverb
FRATERNAL
Meaning of FRATERNAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012