Definify.com
Webster 1913 Edition
Christendom
Chris′ten-dom
,Noun.
[AS.
cristendōm
; cristen
a Christian + -dom
.] 1.
The profession of faith in Christ by baptism; hence, the Christian religion, or the adoption of it.
[Obs.]
Shak.
2.
The name received at baptism; or, more generally, any name or appelation.
[Obs.]
Pretty, fond, adoptious
christendoms
. Shakespeare
3.
That portion of the world in which Christianity prevails, or which is governed under Christian institutions, in distinction from heathen or Muslim lands.
The Arian doctrine which then divided
Christendom
. Milton
A wide and still widening
Christendom
. Coleridge.
4.
The whole body of Christians.
Hooker.
Webster 1828 Edition
Christendom
CHRISTENDOM
, n.1.
The territories, countries or regions inhabited by Christians, or those who profess to believe in the Christian religion.2.
The whole body of Christians.3.
Christianity; the Christian religion; as, while Christendom prevailed.