What part of speech is the italicized word in the sentence below?

Four score and seven years ago, our forefathers brought forth upon this continent a new nation conceived in liberty and dedicated to the proposition that all men are created equal.
adjective
conjunction
adverb
preposition
verb

Forth is italicized

Question

What part of speech is the italicized word in the sentence below?

Four score and seven years ago, our forefathers brought forth upon this continent a new nation conceived in liberty and dedicated to the proposition that all men are created equal.
adjective
conjunction
adverb
preposition
verb

Forth is italicized

anonymous · Answer

In this sentence, forth is an adverb. It modifies the action verb "brought".

anonymous · Answer

I believe it is an adverb since it modifies brought. Replace it with a similar word, like 'forward'. Then it says 'brought forward' and tells you it is an adverb.