GNU Collaborative International Dictionary of English

Found 2 definitions

1.       
   Girth , n. [Icel. gjörð girdle, or gerð girth; akin to Goth. gaírda girdle. See Gird to girt, and cf. Girdle, n.]
   A band or strap which encircles the body; especially, one by which a saddle is fastened upon the back of a horse.
   1913 Webster
   The measure around any object, such as a body at the waist or belly, or a box ; the circumference of anything; as, in order to be acceptable for mailing, the total of height and girth of a package must not exceed 63 inches.
   1913 Webster
   +PJC
   He's a lusty, jolly fellow, that lives well, at least three yards in the girth.
   Addison.
   
   1913 Webster
   A small horizontal brace or girder.
   1913 Webster
         
       

2.       
   Girth, v. t. [From Girth, n., cf. Girt, v. t.] To bind as with a girth. [R.]
   Johnson.
   
   1913 Webster