v. i. [ imp. & p. p. Puritanized p. pr. & vb. n. Puritanizing ] To agree with, or teach, the doctrines of Puritans; to conform to the practice of Puritans. Bp. Montagu. [ 1913 Webster ]
(n)the beliefs and practices characteristic of Puritans (most of whom were Calvinists who wished to purify the Church of England of its Catholic aspects)