rare. [f. SUNDER v. + -MENT.] Separation.
1818. Mme. DArblay, Diary, 17 Nov. I saw him ill, I felt myself well; it was therefore apparent who must be the survivor in case of sunderment.
1895. Westm. Gaz., 17 June, 2/3. On both sides of him were other canine brothers and sisters condemned to a similar sunderment from home.