sneak

To go or move in a quiet, stealthy way.

To behave in a cowardly or servile manner.

To move, give, take, or put in a quiet, stealthy manner.

A person regarded as stealthy, cowardly, or underhanded.

An instance of sneaking; a quiet, stealthy movement.

A sneaker.

Carried out in a clandestine manner.

Perpetrated without warning.

To creep or steal about privately; go furtively, as if afraid or ashamed to be seen; slink.

To behave with meanness and servility; crouch; truckle.