Here's why:
* Predicate noun: A noun that follows a linking verb (like "is," "was," "are," "were," etc.) and renames the subject of the sentence.
* Linking verb: There is no explicit linking verb in this phrase, but we can assume one. It's a common grammatical construction to say "She is a lovely goddess," where "is" is the linking verb.
Therefore, "goddess" renames the subject (implied as "She" in the example) and is the predicate noun.