sorrower vs lamenter

sorrower and lamenter both are nouns.

Word	Noun	Adjective	Verb	Adverb
sorrower	Yes	No	No	No
lamenter	Yes	No	No	No

As nouns, sorrower and lamenter are synonyms defined as:

sorrower and lamenter: a person who is feeling grief (as grieving over someone who has died)

Other synonyms of sorrower include griever, mourner.

sorrower (noun)	lamenter (noun)
a person who is feeling grief (as grieving over someone who has died)	a person who is feeling grief (as grieving over someone who has died)