Sabbathism en · NOUN
Etymology
From Sabbath + -ism.
Meanings
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(dated, uncountable) The tendency to treat the Sabbath as a solemn religious occasion rather than merely as a day off.
[…] they do not want the lowest forms of excitement, or of literature; they want something which shall occupy the middle ground between the debauchery of low holidayism and the religious observance which comes with Sabbathism.
1884, The Outlook and Sabbath Quarterly, volumes 3-6, page 325:As to Sunday legislation we have seen that its origin was absolutely pagan, and that it has been destructive of true Sabbathism at all times.
1892, Abram Herbert Lewis, Paganism Surviving in Christianity: