en

in (used to indicate space, also see usage notes); to (indicates direction towards certain very large locations, see usage notes); by (used to indicate means); as; at (used to describe an ability)

“J'habite en Angleterre.” — I live in England.

From Middle French en, from Old French en, from Latin in, from Proto-Italic *en, from Proto-Indo-European *h₁én (“in”).

Used as the object of a verb to indicate an indefinite quantity; of it, of them. Replaces the partitive article (du, de la, etc.); Adverbial preposition indicating movement away from a place already mentioned; from there, from it. Replaces the phrase de là or d’ici.

“Essaies-en !” — Try some (of it / them)!

From Latin inde (“thence”). Compare Catalan en, Italian ne.