Solidarity
来自Big Physics
mid 19th century: from French solidarité, from solidaire ‘solidary’.
wiktionary
From French solidarité(“solidarity”), from solidaire(“characterized by solidarity”), from Latin solidum(“whole sum”), neuter of solidus(“solid”).
etymonline
solidarity (n.)
1829, from French solidarité "communion of interests and responsibilities, mutual responsibility," a coinage of the "Encyclopédie" (1765), from solidaire "interdependent, complete, entire," from solide (see solid (adj.)). With a capital S-, the name of an independent trade union movement in Poland, formed September 1980, from Polish Solidarność.