1590s, "make plain, show clearly," a sense now obsolete, a back-formation from remonstration, or else from Medieval Latin remonstratus, past participle of remonstrare "to demonstrate" (see remonstrance). Meaning "to exhibit or present strong reasons against" an act, measure, etc. is from 1690s. Related: Remonstrated; remonstrating.
updated on June 28, 2021