The Collaborative International Dictionary of English v.0.48:
Overgo \O`ver*go"\, v. t. [imp. Overwent; p. p. Overgone; p. pr. & vb. n. Overgoing.] [AS. oferg[=a]n.] [1913 Webster] 1. To travel over. [R.] --Shak. [1913 Webster] 2. To exceed; to surpass. [Obs.] --Sir P. Sidney. [1913 Webster] 3. To cover. [Obs.] --Chapman. [1913 Webster] 4. To oppress; to weigh down. [Obs.] --Shak. [1913 Webster]