avoirdupois

noun4

1. •
   (historical) The official system of weights used in the UK between 1856 and 1963. It had been the customary system in London since 1300.
2. •
   (historical) The official system of weights used in the USA between 1866 and 1959.
3. •
   (humorous) Weight; heaviness.

   • It seems humanly reasonable that the three of us can woman-handle a mere man of your elderly and insulting avoirdupois. — 1915
4. •
   (no longer used) Merchandise.