Definition of usager in English:

usager

Pronunciation /ˈjuːsɪdʒə/ /ˈjuːzɪdʒə/

noun

Christian Church
  • Usually with capital initial. A member of the section of the Nonjurors who in 1719 accepted the Communion Service drawn up by Jeremy Collier and others.

Origin

Early 17th century (in an earlier sense).