[cum.ber] vt cum.bered ; cum.ber.ing [ME combren, perh. fr. OF combrer to prevent, fr. (assumed) OF combre abatis] (14c) 1 archaic: trouble, harass
2. a: to hinder or encumber by being in the way "~ed with heavy clothing" b: to clutter up "rocks ~ing the yard"
[2]cumber n (14c): something that cumbers; esp: hindrance