Etymology · Proto-Germanic
*spehōną
3 English words descend from Proto-Germanic *spehōną, most common first.
- spyA person who secretly watches and examines the actions of other individuals or organizations and gathers information on them (usually to gain an advantage).
- espionageThe act or process of learning secret information through clandestine means.
- espyTo find out or observe (someone or something, especially if not easy to see) by spying or looking; to catch sight of; to see; to spot.