So THAT’s Why We Shorten Pounds To ‘Lbs’
However, according to The Week, “the word came into English from Anglo-Norman French, where it was unce or ounce, but the abbreviation was borrowed from Medieval Italian, where the word was onza”.
Article source: https://www.huffingtonpost.co.uk/entry/why-we-shorten-pounds-to-lbs_uk_6aa80156e4b054da7a235e86