sorrower vs griever

sorrower and griever both are nouns.

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

As nouns, sorrower and griever are synonyms defined as:

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

Other synonyms of sorrower include lamenter, mourner.

sorrower (noun)	griever (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)