Most units of measure abbreviations are quite intuitive, usually by word prefix representatives, such as m (meter) abbreviated as m, g (gram) abbreviated to g, liters (litre) abbreviated as (L). But everything has an exception, lb (pound) is the abbreviation lb instead of p, oz (ounce) is abbreviated oz instead of o, Tell me what you thought about why?
lb is the abbreviation for the Latin libra,the original meaning is to balance or measure, just as it is represented in the constellation Libra; besides Latin, ancient Roman libra measurement units also used the word for libra pondo, meaning " pounder, "so the word weight unit pound, came from pondo, abbreviation comes from libra. The pound sign £ also comes from libra, Italian original currency lira (lira, ₤) is also out of this.
As ounce is related with the Latin uncia, followed by Anglo - Norman French into the English-speaking world, there were two written unce or ounce, but the acronym comes from medieval Italian language onza. Today, the Italian word has become oncia, which was once the Roman Empire ruled areas are already converted to metric units.
