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Webster 1913 Edition

adv.

Like a Protestant; in conformity with Protestantism.

[R.]

Milton.

adv.

In conformity to the protestants. [A very bad word and not used.]

Protestantly ‎(comparative more Protestantly, superlative most Protestantly)

Like a Protestant; in conformity with Protestantism.
(Can we find and add a quotation of Milton to this entry?)