undershoe — English Dictionary

Noun

1. A covering for the foot, sturdier than a sock, worn under the outer shoes.

   Examples

   The rubber overshoe is made to protect only the ball of the foot or is provided with an opening through which the heel of the undershoe projects.

   More examples (1)

   Then he inserted the blade of his knife under the top of Peary's sealskin boots. He ripped the boots from both feet and gently removed the rabbitskin undershoes.