quakingquaking means the action of the verb quake. Lexicurio rates it Rare gem — a strength score of 71 out of 100.EtymologyFrom Middle English quakinge, quakyng, from Old English cwacung (“quaking, trembling”), equivalent to quake + -ing.nounThe action of the verb quake.adjShaking uncontrollably, especially due to fear or awe; trembling or shivering.