Sneak (?), v. i. [imp. & p. p. Sneaked (?); p. pr. & vb. n. Sneaking.] [OE. sniken, AS. snican to creep; akin to Dan. snige sig; cf. Icel. snikja to hanker after.]
1.
To creep or steal (away or about) privately; to come or go meanly, as a person afraid or ashamed to be seen; as, to sneak away from company.
<-- ? imp. & p. p. "snuck" is more common now, but not even mentioned here. In MW10, simply "sneaked or snuck" -->
You skulked behind the fence, and sneaked away.
Dryden.
2.
To act in a stealthy and cowardly manner; to behave with meanness and servility; to crouch.
© Webster 1913.
Sneak, v. t.
To hide, esp. in a mean or cowardly manner.
[Obs.] "[Slander]
sneaks its head."
Wake.
© Webster 1913.
Sneak, n.
1.
A mean, sneaking fellow.
A set of simpletons and superstitious sneaks.
Glanvill.
2. Cricket
A ball bowled so as to roll along the ground; -- called also grub.
[Cant]
R. A. Proctor.
© Webster 1913.