English Etymology From base + path. Noun basepath (plural basepaths) (baseball) The grassless ways around the baseball diamond on which runners advance. 2007 June 2, Tyler Kepner, “Reconsidering, Torre Admonishes Rodriguez”, in New York Times:Jackson broke up a potential double play in the 1978 World Series when he froze on the basepaths and turned his hip into a throw. (pesäpallo) The path between two adjacent bases, such as between the first and the second base.Remove adsWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads