commiserate vs sympathise

commiserate and sympathise both are verbs.

Word	Noun	Adjective	Verb	Adverb
commiserate	No	No	Yes	No
sympathise	No	No	Yes	No

As verbs, commiserate and sympathise are synonyms defined as:

Other synonyms of commiserate include sympathize.

commiserate (verb)	sympathise (verb)
to feel or express sympathy or compassion	be understanding of
	to feel or express sympathy or compassion
	share the feelings of; understand the sentiments of