sabbataire

Etymology
From.

Adjective

 * 1) Relating to the celebration of God on the day of Sabbath
 * l'hérésie sabbataire.

Noun

 * 1) Christianized Jew who would respect the day of Sabbath
 * 2) Sabbatarian, Christian respecting the day of Sabbath because it is not formally abolished by the Scriptures
 * les sabbataires rejetaient le dimanche et fêtaient le samedi.