Backwater
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Water in a stream which, in consequence of some dam or obstruction below, is detained or checked in its course, or flows back.
Hodges v. Raymond, 9 Mass. 316 ; Chambers v. Kyle, 87 Ind. 85.
Water caused to flow backward from a steam-vessel by reason of the action of its wheels or screw.