What are the underlined words?
"..arrived in the Bay de Todos los Santos, or All Saints’ Bay, in about twenty-two days after."
Answer:
Either, but if you need to pick one it would be noun.
Explanation:
The predicate nominative (or predicate noun) is the noun or pronoun that comes after a linking verb. It renames the subject of the sentence. The sentence should still make sense if you switch the predicate nominative and the subject.