pound 1 of 4noun ˈpau̇nd pluralpoundsalsopound 1 :any of various units of mass and weight especially : measure 2 a :the basic unit of money of the United Kingdom called alsopound sterling b :any of several basic units of money (as of Egypt, Lebanon, or Syria) ...
Pound employs an allusion to "a story of a woman waiting for her husband on a hill." In Pound's version, the line emphasizes the otherworldly nature of her love during her marriage.