Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class III. Words Relating to Matter
Section I. Matter in General
4. Motion with Reference to Direction

319. Gravity.

   NOUN:GRAVITY, gravitation; weight; heft [U. S. & dial. Eng.], heaviness &c. adj.; specific gravity; ponderation [rare], ponderousness, ponderance [rare], ponderousness, ponderance [rare], ponderosity, pressure, load; burden or burthen; ballast, counterpoise; mass; lump -, mass -, weight-of.
  [COMPARISONS] lead, millstone, mountain; Ossa on Pelion.
  WEIGHING, ponderation, trutination [obs.]; weights; avoirdupois -, troy -, apothecaries’- weight; grain, scruple, drachma, dram or drachm, ounce, pound, lb., arroba, load, stone, hundred-weight, cwt., ton, quintal, carat, penny-weight, tod; gram or gramme, decagram, hectogram, kilogram or kilo, myriagram, decigram, centigram, milligram.
  [WEIGHING INSTRUMENT] balance, scales steelyard, beam, weighbridge, spring balance.
   VERB:BE HEAVY &c. adj.; gravitate, weigh, press, cumber, load.
  [MEASURE THE WEIGHT OF] weigh, counterweigh, scale [rare], poise.
   ADJECTIVE:WEIGHTY; weighing &c. v.; heavy, – as lead; ponderous, ponderable; lumpish, lumpy, cumbersome, burdensome; cumbrous, unwieldy, massive; static or statical.
  incumbent, superincumbent.