let go vs lug

let go

verb
  • Used other than figuratively or idiomatically: see let, go. 

  • To dismiss from employment. 

  • To release from one's grasp; to go from a state of holding on to a state of no longer holding on. 

  • To ignore (a comment, etc.). 

  • To emotionally disengage or to distract oneself from a situation. 

  • To fail to maintain a standard of appearance, behavior, or performance. 

  • To gain weight 

lug

verb
  • To haul or drag along (especially something heavy); to carry; to pull. 

  • To run at too slow a speed. 

  • To carry an excessive amount of sail for the conditions prevailing. 

  • To pull toward the inside rail ("lugging in") or the outside rail ("lugging out") during a race. 

noun
  • That which is hauled or dragged. 

  • A wood box used for transporting fruit or vegetables. 

  • An ear or ear lobe. 

  • A lugworm. 

  • A lug nut. 

  • A device for terminating an electrical conductor to facilitate the mechanical connection; to the conductor it may be crimped to form a cold weld, soldered or have pressure from a screw. 

  • A lugsail. 

  • A ridge or other protuberance on the surface of a body to increase traction or provide a hold for holding and moving it. 

  • A part of something which sticks out, used as a handle or support. 

  • A pull or drag on a cigarette. 

  • The leather loop or ear by which a shaft is held up. 

  • A loop (or protuberance) found on both arms of a hinge, featuring a hole for the axis of the hinge. 

  • A request for money, as for political purposes. 

  • A large, clumsy, awkward man; a fool. 

  • A rod or pole. 

  • The act of hauling or dragging. 

  • Anything that moves slowly. 

How often have the words let go and lug occurred in a corpus of books? (source: Google Ngram Viewer )