To withdraw or convey clandestinely (reflexive); hence, to creep furtively, or to insinuate.

To gain by insinuating arts or covert means.

To withdraw, or pass privily; to slip in, along, or away, unperceived; to go or come furtively.

move stealthily; "The ship slipped away in the darkness"

to go stealthily or furtively; "..stead of sneaking around spying on the neighbor's house"