What is the X in X-mas?
mid-14c., from Old French pinte "liquid measure, pint" (13c.), probably from Vulgar Latin *pincta (source of Old Provençal, Spanish, Italian pinta), altered from Latin picta "painted," fem. past participle of pingere "to paint" (see paint (v.)), on notion of a painted mark on a vessel indicating this measure. Used elliptically for "pint of ale" (or beer) from 1742. Pint-sized "small" (especially in reference to children) is recorded from 1938.
A unit of volume or capacity in the U.S. Customary System, used in liquid measure, equal to 16 fluid ounces, 28.875 cubic inches, or .473 liter.
A unit of volume or capacity in the U.S. Customary System, used in dry measure, equal to 1/2 quart or 0.551liter.
unit of capacity in the British Imperial and U.S. Customary systems of measurement. In the British system the units for dry measure and liquid measure are identical; the single British pint is equal to 34.68 cubic inches (568.26 cubic cm) or one-eighth gallon. In the United States the unit for dry measure is slightly different from that for liquid measure; a U.S. dry pint is 33.6 cubic inches (550.6 cubic cm), while a U.S. liquid pint is 28.9 cubic inches (473.2 cubic cm). In each system, two cups make a pint, and two pints equal a quart.