underrun Meaning, Definition & Usage

Un`der*run" transitive verb
Definitions
  1. To run or pass under; especially (Naut.), to pass along and under, as a cable, for the purpose of taking it in, or of examining it. ✍ The cable passes over the bows and stern of the boat used, while the men haul the boat along by pulling upon the cable. Totten.

Webster 1913