The story
- Latin · derived fromsolidum“whole sum”
- French · derived fromsolidarité“solidarity”
- English todaysolidarity
By surface analysis, from English solidary + -ity, or from French solidarité (“solidarity”), from solidaire (“characterized by solidarity”), from Latin solidum (“whole sum”), neuter of solidus (“solid”).
Words from the same roots
Etymology from Wiktionary, CC BY-SA 4.0.