Emily Dickinson Lexicon

REF'ORM-A-TION, n.

1. The act of reforming; correction or amendment of life, manners, or of any thing vicious or corrupt; as, the reformation of manners; reformation of the age; reformation of abuses. Satire lashes vice into reformation. – Dryden.
2. By way of eminence, the change of religion from the corruptions of popery to its primitive purity, begun by Luther, A. D. 1517.