confraternity
/ˌkɒnfrəˈtɜːnətɪ/noun
(pl. -ies)
- a brotherhood, especially with a religious or charitable purpose（尤指以宗教、慈善事业为目的的）修士会; 兄弟会, 同志会。
词源
late Middle English: from Old French confraternite, from medieval Latin confraternitas, from confrater （see CONFRÈRE）.