noun

1. miscellaneous discarded household articles, furniture, etc. stored away or taking up room
2. ☆ timber sawed into beams, planks, boards, etc. of convenient sizes

Etymology: < ? Lombard: orig., pawnbroker's shop or storeroom, hence pawned articles in storage, hence stored articles, hence lumber

transitive verb

1. 1. to fill or obstruct with useless articles or rubbish; clutter
   2. Brit., Informal to encumber or burden: often with with
2. ☆ to remove (timber) from (an area) for use as lumber

intransitive verb

intransitive verb

1. to move heavily, clumsily, and, often, noisily tanks lumbering up a slope
2. to rumble

Etymology: ME lomeren < ? Scand, as in Swed lomra, to resound, loma, to walk heavily