deleave

verb

1. (transitive)To split (paper) into separate leaves or sheets.

   “Simple Way to Deleave Forms and Carbons. To do away with torn sets, loss of time and labor in separating carbons from multiple form sets, a new deleaving machine is handy to have around the office.”

   “[…] to deleave the multiple ply continuous form stationery into individual continuous form plies. The individual plies are then unrolled and each separated at the transverse perforations to provide separate stationery forms.”