Proper noun
An American surname from German, variant of Swiss German Leidig.
(rare) A unisex given name transferred from the surname.
Source: en.wiktionary.orgHe came to the conclusion that the tail vertebra named Antrodemus by Leidy was indistinguishable from those of Allosaurus, and Antrodemus thus should be the preferred name because as the older name it had priority. Source: Internet