Part of speech: Noun
someone authorized to exercise the powers of sheriff in emergencies
Categories: Lawman, Law officer, Peace officer
Part of speech: Noun
an assistant with power to act when his superior is absent
Categories: Assistant, Helper, Help, Supporter
Part of speech: Noun
a member of the lower chamber of a legislative assembly (such as in France)
Categories: Legislator
Part of speech: Noun
a person appointed to represent or act on behalf of others
Categories: Agent
Surrogate, Deputy, Deputy sheriff, Lieutenant
The word "deputy" comes from Late Latin deputatus, which comes from French député.
Latin's grammatical structure influenced how English speakers think about verb tenses and cases.