รุก

From Old Khmer *រុក៑ (*ruk) or Angkorian Old Khmer រុក៑ (ruk, “to invade; to force (one's way into); to thrust (into); to penetrate; to pierce; etc”). Cognate with Modern Khmer រុក (ruk).

รุก • (rúk) (abstract noun การรุก)

1. to enter wrongfully or forcefully: to invade, to intrude, to poach, to trespass, to commit a trespass (upon), etc.
2. (geology, of the sea) to transgress.
3. (military, sports, etc) to attack; to make an offensive; to make an aggressive move or movement; to carry out an attacking campaign.
4. (chess) to check.
5. to be active or proactive; as opposed to รับ (ráp, “to be passive”).

รุก • (rúk) (abstract noun การรุก)

1. (in seal carving) to reduce the size or thickness of a line.