σφυρόν sphyrón

Meaning

compare the feminine , a hammer); the ankle (as globular)

In the King James Version: ancle bone

Derivation: neuter of a presumed derivative probably of the same as (a ball, "sphere";

Where it is used

• Acts 3:7 Taking him by the right hand, Peter helped him up, and at once the man’s feet and ankles were made strong.