why is the short form for Pound " lb "?

Answer 1

lb is latin for libra whose symbols is the scales

Answer 2

The pound as a name for a unit of mass (or weight, before the distinction between mass and weight developed) has a long history. The history of the pound goes hand in hand with the history of the related systems of units of mass and their applications.

The word “pound” comes from the Latin word pendere, meaning “to weigh”. The Latin word libra means “scales, balances" and it also describes a Roman unit of mass similar to a pound. This is the origin of the abbreviation “lb” or “℔” for the pound. The “s” at the end of “lbs” simply denotes the plural form.

Answer 3

The origin is in the Latin word libra, which could mean both balance scales (hence the symbol for the astrological sign Libra, which was named after a constellation that was thought to resemble scales) and also a pound weight, for which the full expression was libra pondo, the second word being the origin of our pound.

Answer 4

lb is short for the Latin 'librae' which means pound or scales. That is why the symbol for the zodiac sign of Libra is a scale.

Answer 5

It comes from the latin word "libra" which means balance or scale. Their word for pound was "libra pondo" which is where we got the word for our pound.