early 15c., "capable of life or growth; growing, vigorous;" also "neither animal nor mineral, of the plant kingdom, living and growing as a plant," from Old French vegetable "living, fit to live," and directly from Medieval Latin vegetabilis "growing, flourishing," from Late Latin vegetabilis "animating, enlivening," from Latin vegetare "to enliven," from vegetus "vigorous, enlivened, active, sprightly," from vegere "to be alive, active, to quicken," from PIE root *weg- "to be strong, be lively." The meaning "resembling that of a vegetable, dull, uneventful; having life such as a plant has" is attested from 1854 (see vegetable (n.)).
<a href="https://www.etymonline.com/word/vegetal">Etymology of vegetal by etymonline</a>
Harper, D. (n.d.). Etymology of vegetal. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/vegetal