The Collaborative International Dictionary of English v.0.48:

Slive \Slive\ (sl[imac]v), v. i. [Cf. Slip.]
   To sneak. [Prov. Eng.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Slive \Slive\, v. t. [OE. sliven to split, cleave, AS.
   sl[imac]fan.]
   To cut; to split; to separate. [Obs.] --Holland.
   [1913 Webster]