Christdom

Noun

Christendom (countable and uncountable, plural Christendoms)

1. The Christian world; Christ's Church on Earth.
   • The Arian doctrine which then divided Christendom.1670, John Milton, “(please specify the page)”, in The History of Britain, that Part Especially now Call’d England. […], London: […] J[ohn] M[acock] for James Allestry, […] , →OCLC
2. (archaic) The state of being a (devout) Christian; Christian belief or faith.
   • By my Chriſtendome, So I were out of priſon, and kept Sheepe, I ſhould be as merry as the day is long.c. 1596 (date written), William Shakespeare, “The Life and Death of King Iohn”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward]...
3. (obsolete) The name received at baptism; any name or appellation.
   • […]but for an Author to renounce his Chriſtendome to write in his owne commendation, to refuſe the name which his Godfathers and Godmothers gaue him in his baptiſme , and call himſelfe a wellwiller to both the writers[…]1592, Thomas Nash[e], Pierce Penilesse His Supplication to the Deuill. […], London: […] [John Charlewood for] Richard Ihones, […], →OCLC