Definify.com
Webster 1913 Edition
-ite
-ite
.[From Gr. [GREEK], [GREEK].] 
1. 
A suffix denoting 
one of a party
, a sympathizer with 
or adherent of
, and the like, and frequently used in ridicule; as, a Miller
 ite
; a Benthamite
.2. 
A suffix used in naming minerals; 
as, chlor
 ite
, from its characteristic green color; barite
, from its heaviness; graphite
, from its use in writing.3. 
(Chem.) 
A suffix used to denote the salts formed from those acids whose names end in -ous; 
as, sulph
 ite
, from sulphurous
; nitrite
, from nitrous 
acid, etc.