dis·sev·er 
(dĭ-sĕvər)
(dĭ-sĕvər)v. dis·sev·ered, dis·sev·er·ing, dis·sev·ers
v.tr.
1. To separate; sever.
2. To divide into parts; break up.
v.intr.
To become separated or disunited.
[Middle English disseveren, from Old French dessevrer, from Late Latin dissēparāre : Latin dis-, dis- + Latin sēparāre, to separate; see SEPARATE.]
dis·sever·ance, dis·sever·ment n.