IPA: /ˈfʊtˌstuːl/
KK: /ˈfʊtˌstul/
A small, low piece of furniture that you can rest your feet on while sitting.
She put her feet up on the footstool while reading her book.
Footstool → It is formed from "foot" (from Old English "fōt", meaning the lower extremity of the leg) and "stool" (from Old English "stōl", meaning a seat or a place to sit). The word "footstool" refers to a stool designed to support the feet while sitting.
Think of a 'foot' as the part of the body that rests on a 'stool' — a footstool is a seat for your feet.
No commonly confused words.