Apostate

1. v. i. To apostatize.
2. n. One who has forsaken the faith, principles, or party, to which he before adhered; esp., one who has forsaken his religion for another; a pervert; a renegade.
3. n. One who, after having received sacred orders, renounces his clerical profession.
4. a. Pertaining to, or characterized by, apostasy; faithless to moral allegiance; renegade.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.