leg vs tread

leg

verb
  • To build legs onto a platform or stage for support. 

  • To remove the legs from an animal carcass. 

  • To apply force using the leg (as in 'to leg a horse'). 

  • To put a series of three or more options strikes into the stock market. 

noun
  • A part of garment, such as a pair of trousers/pants, that covers a leg. 

  • One side of a multiple-sided (often triangular) course in a sailing race. 

  • One of the branches of a hyperbola or other curve which extend outward indefinitely. 

  • Denotes the half of the field on the same side as the batsman's legs; the left side for a right-handed batsman. 

  • A branch circuit; one phase of a polyphase system. 

  • In a grain elevator, the case containing the lower part of the belt which carries the buckets. 

  • In humans, the lower limb extending from the groin to the ankle. 

  • A branch or lateral circuit connecting an instrument with the main line. 

  • A single game or match played in a tournament or other sporting contest. 

  • An army soldier assigned to a paratrooper unit who has not yet been qualified as a paratrooper. 

  • The portion of the lower limb of a human that extends from the knee to the ankle. 

  • A distance that a sailing vessel does without changing the sails from one side to the other. 

  • An underlying instrument of a derivatives strategy. 

  • An extension of a steam boiler downward, in the form of a narrow space between vertical plates, sometimes nearly surrounding the furnace and ash pit, and serving to support the boiler; called also water leg. 

  • The ability of something to persist or succeed over a long period of time. 

  • A stage of a journey, race etc. 

  • A column, as a unit of length of text as laid out. 

  • A rod-like protrusion from an inanimate object, such as a piece of furniture, supporting it from underneath. 

  • Something that supports. 

  • One of the two sides of a right triangle that is not the hypotenuse. 

  • A limb or appendage that an animal uses for support or locomotion on land. 

tread

verb
  • To work a lever, treadle, etc., with the foot or the feet. 

  • To proceed, to behave (in a certain manner). 

  • To beat or press with the feet. 

  • To crush grapes with one's feet to make wine 

  • To step or walk upon. 

  • To copulate; said of (especially male) birds. 

  • To step or walk (on or across something); to trample. 

  • To go through or accomplish by walking, dancing, etc. 

  • To copulate with. 

  • To crush under the foot; to trample in contempt or hatred; to subdue. 

noun
  • A step taken with the foot. 

  • The grooves carved into the face of a tire, used to give the tire traction. 

  • The chalaza of a bird's egg; the treadle. 

  • The grooves on the bottom of a shoe or other footwear, used to give grip or traction. 

  • A bruise or abrasion produced on the foot or ankle of a horse that interferes, or strikes its feet together. 

  • The horizontal part of a step in a flight of stairs. 

  • The top of the banquette, on which soldiers stand to fire over the parapet. 

  • The act of avian copulation in which the male bird mounts the female by standing on her back. 

  • A manner of stepping. 

  • The sound made when someone or something is walking. 

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