Modifier is a noun.
Chat with our AI personalities
The word "selfishly" is an adverb because it can be used to modify verbs or adjectives.
A verb is modified by an adverb or an adverbial phrase.
An adjective can only modify a noun, pronoun, or noun phrase. It cannot modify a verb, adverb, adjective, or other part of speech...or it would not be acting as an adjective.
Not sure if it is preposition or adverb. What does it modify?
"Spendthrift" is fundamentally a noun. Like many nouns, it can be used as a "substantive adjective" to modify other nouns, as in "spendthrift trust."