Solidarity

Sol`i*dar"i*ty (?), n. [F. solidarité, fr. solide. See Solid.] An entire union or consolidation of interests and responsibilities; fellowship; community.

Solidarity [a word which we owe to the French Communists], signifies a fellowship in gain and loss, in honor and dishonor, in victory and defeat, a being, so to speak, all in the same boat.
Trench.

The solidarity . . . of Breton and Welsh poetry.
M. Arnold.