Pennyweight(n.) A troy weight containing twenty-four grains, or the twentieth part of an ounce; as, a pennyweight of gold or of arsenic. It was anciently the weight of a silver penny, whence the name.
Thesaurus Entries
ace, atom, beverage, bit, bumper, carat, centigram, crumb, dab, dash, decagram, decigram, dole, dollop, dose, dot, draft, dram avoirdupois, drench, dribble, driblet, drink, drop, dwarf, dyne, farthing, finger, fleck, flyspeck, force, fragment, gargle, gobbet, grain, gram, granule, groat, gulp, guzzle, hair, handful, hoot, hundredweight, iota, jigger, jolt, jot, kilo, kilogram, lap, libation, little, little bit, lota, mass, megaton, milligram, minim, minimum, minutiae, mite, modicum, mole, molecule, mote, nip, nutshell, ounce, ounce avoirdupois, ounce troy, particle, pebble, peg, pennyweight, pinch, pittance, point, portion, potation, potion, pound, pound avoirdupois, pound troy, poundal, pull, quaff, quick one, round, round of drinks, scruple, shot, shred, sip, slug, slurp, smidgen, smitch, snack, snifter, snort, speck, splash, spoonful, spot, stone, suck, sup, swig, swill, thimbleful, tiny bit, tittle, ton, tot, trifling amount, trivia, units of weight, weight, wet, whit