Definition of watergrave in English:

watergrave

Pronunciation /ˈwɔːtəɡreɪv/

noun

historical
  • Chiefly in medieval Flanders: an officer responsible for overseeing the use of lakes, rivers, and other waterways, especially with regard to the protection of fishing privileges or the maintenance and use of canals, sluices, bridges, etc. Compare "water bailiff".

Origin

Late 15th century. From water + grave.