Slipa
Bosworth & Toller Anglo-Saxon Old English Dictionary - slipa
According to the Old English Dictionary:
(slypa ?), an;
- slipa
- m. A viscous, slimy substance :-- Genim sealh and ele dó ahsan (tó ?) gewyrc ðonne tó slypan . . . dó ðonne on ðone slipan, Lchdm. ii. 18, 26-28. Wyrc slypan of wætere and of axsan, iii. 38, 1. and slyppe. slipa