Rally

As a noun, a rally is a large public meeting to support a cause, or a sudden improvement in something like health or prices. As a verb, it means to come together to support someone or something, or to recover strength or position.

It comes from French “rallier,” meaning “to reunite, bring together again,” from “re-” (again) and “allier” (to ally). The sense of public meetings and political support grew in the 19th century.