When two men have a close and loyal friendship, this is an example of a brotherhood.
When a group of people all shares the same goals and tribulations and support each other, this is an example of a brotherhood.
A brotherhood of venerable trees. - William Wordsworth.
Origin of brotherhood
- From Middle English brotherhod, from earlier brotherhede, alteration (influenced by suffixes in -hood, -head) of Early Middle English brotherrede (“brotherhood, fraternity”), from Old English brōþorrǣden (“brotherhood, fellowship”), equivalent to brother + -red (see brotherred). More at brother, -red.