noun, feminine/ɑ̃.tʁə.pʁiz/plural: entreprises
company, business; enterprise, project
“Mais à peine se vit-il en chemin qu’une pensée terrible l’assaillit, et telle, que peu s’en fallut qu’elle ne lui fît abandonner l’entreprise commencée.” — But he had scarcely set off when a terrible thought assailed him, so terrible that it very nearly made him abandon the enterprise he had started.
Feminine past participle of entreprendre (“undertake”). Compare Italian impresa for a similar construction.