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Webster 1913 Edition


Instep

In′step

,
Noun.
[Formerly also
instop
,
instup
.]
1.
The arched middle portion of the human foot next in front of the ankle joint.
3.
That part of the hind leg of the horse and allied animals, between the hock, or ham, and the pastern joint.

Webster 1828 Edition


Instep

IN'STEP

,
Noun.
[in and step.] The instep of the human foot, is the fore part of the upper side of the foot, near its junction with the leg.
1.
The instep of a horse, is that part of the hind leg, which reaches form the ham to the paster-joint.