sewer
1. sew.er \'su:-*r, 'su.(-*)r\ n [ME, fr. AF asseour, lit., seater, fr. OF asseoir to seat - more]at ASSIZE : a medieval household officer often of high rank in charge of serving the dishes at table and sometimes of seating and tasting 2. sew.er \'so-(-*)r\ n : one that sews 3. sew.er \'su:-*r, 'su.(-*)r\ n [ME, fr. MF esseweur, seweur, fr. essewer to drain, fr. (assu]med) VL exaquare, fr. L ex- + aqua water - more at ISLAND : an artificial usu. subterranean conduit to carry off water and waste mat ter
Webster's English Dictionary