essewium Save DMLBS essewium [cf. exaquium] , ditch, dyke, trench (for draining land). V. et. essewera 2, essewitium. 1289 in x quarenten’ ejusdem terre sulcandis propter ~ium faciendum MinAc 1027/17 r. 6 (cf. ib. r. 9: in xxij quarent’ ‥ ejusdem terre sulcandis pro ~io).