Why is feet called feet?

Answer 1

The foot was the size of the foot of King Henry VIII, who standardised the weights and measures of Britain, frequently to his personal dimensions. Hence, they became known as IMPERIAL measurements.

Answer 2

The word "feet" is derived from the Old English word "fōt," which means the lower part of the leg below the ankle, on which a person or animal stands. Over time, the plural form "feet" was adopted to refer to the body part as well as a unit of measurement.