Sabbatarianism

noun
Sab·​ba·​tar·​i·​an·​ism | \ ˌsa-bə-ˈter-ē-ə-ˌni-zəm How to pronounce Sabbatarianism (audio) \

Definition of Sabbatarianism

: strict and often rigorous observance of the Sabbath

First Known Use of Sabbatarianism

circa 1674, in the meaning defined above

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