v.
1. intr. (often foll. by down, in, etc.) settle oneself comfortably.
2 intr. press oneself against another in affection etc.
3 tr. (foll. by in, into, etc.) push (a head or shoulder etc.) affectionately or snugly.
4 intr. lie half hidden or embedded.
Etymology: OE nestlian (as NEST)