รุก

to enter wrongfully or forcefully: to invade, to intrude, to poach, to trespass, to commit a trespass (upon), etc.
(geology) to transgress.
(military) to attack; to make an offensive; to make an aggressive move or movement; to carry out an attacking campaign.
(chess) to check.
to be active or proactive; as opposed to .

Borrowed from Old Khmer *ruk (take cover shelter) borrowed from ruk (etc, penetrate, pierce, thrust, invade, force).

ruk

etc, penetrate, pierce, thrust, invade, force

Basic actions and technology

Action/Process