instep

noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about instep at Wordnik → Where our words come from →

1. The arched part of the top of the foot between the toes and the ankle.

   high instep

2. A section of any footwear covering that part of the foot.
3. In horses, the hind leg from the ham to the pastern joint.