anteport

noun2

1. •
   A hanging or covering in front of a door.

   • The Anteportaes [translating portiere] were of cloth of Gold of Bursia, and their borders of Crimson Veluet, embroydered with Gold and Pearles: […] — 1625
2. •
   An outer or preliminary port, gate, or door.

   • The plans were prepared by the eminent engineer, Adolfo Guerard, and what is wanted at once is the construction of a canal, port, and anteport, up to at least seven and a half meters depth; […] — 1900