Etymology
From the Latin lagōpūs, from the Ancient Greek λαγώπους (lagṓpous), from λαγώς (lagṓs, “hare”) + πούς (poús, “foot”); compare lagopod, lagopode. The bird was given this name because its feet resemble those of a hare.
Definitions & examples from Wiktionary (CC BY-SA 3.0).