FALSE FRIEND = a word that seems to mean the same in two languages, but doesn't
To us, espia means "to look for, to search for."
To Spanish-speaking people, it means "he or she spies."
This was probably the original usage in Chamorro, as the earliest Spanish-Chamorro dictionary (Ibáñez, 1865) shows it to have the same meaning "to spy" in both languages. By the time Pale' Román wrote his dictionary (1932), the word had both meanings and his dictionary shows it.