Meaning

verb have an existence, be extant

verb support oneself

originFrom French exister, from Latin existō, exsistō (“I am, I exist, appear, arise”), from ex (“out”) + sistere (“to set, place”) (related to stare (“to stand, to be stood”)), ultimately from Proto-Indo-European *stísteh₂ti, from the root *steh₂- (“stand”); see stand. Compare assist, consist, desist, insist, persist, resist. Cognate with Spanish existir, French exister, Italian esistere, German…

Etymology from Wiktionary, CC BY-SA 3.0