sabbatist

As a proper noun Sabbath

is the Biblical seventh day of the week, observed as a day of rest in Judaism, Seventh-day Adventism, or Seventh Day Baptism, starting at sundown on Friday till sundown on Saturday.

As a noun Sabbatist is

one who exhibits Sabbatism; a strict observer of the Sabbath.

As nouns the difference between observer and sabbatist

is that observer is one who makes observations, monitors or takes notice while sabbatist is (judaism) one who exhibits sabbatism; a strict observer of the sabbath.

As an adjective strict

is strained; drawn close; tight.

As a noun sabbatist is

(judaism) one who exhibits sabbatism; a strict observer of the sabbath.

In judaism terms the difference between sabbatism and sabbatist

is that sabbatism is strict observance of the Sabbath while sabbatist is one who exhibits Sabbatism; a strict observer of the Sabbath.

As nouns the difference between exhibit and sabbatist

is that exhibit is an instance of while sabbatist is (judaism) one who exhibits sabbatism; a strict observer of the sabbath.

As a verb exhibit

is to display or show (something) for others to see, especially at an exhibition or contest.