1. [n]  legging consisting of a cloth or leather covering for the leg from the knee to the ankle
2. [n]  a shoe covering the ankle with elastic gores in the sides
3. [n]  a cloth covering (a legging) that provides covering for the instep and ankles

GAITER is a 6 letter word that starts with G.

1. \Gait"er\, n. [F. gu[^e]tre, cf. Armor. gweltren; or
   perh. of German origin, and akin to E. wear, v.]
   1. A covering of cloth or leather for the ankle and instep,
      or for the whole leg from the knee to the instep, fitting
      down upon the shoe.
   
   
   
   2. A kind of shoe, consisting of cloth, and covering the
      ankle.
   
   

2. \Gai"ter\, v. t.
   To dress with gaiters.