commendation vs commend

commendation is a noun but commend is not a noun.

Word	Noun	Adjective	Verb	Adverb
commendation	Yes	No	No	No
commend	No	No	Yes	No

commendation (noun)	commend (noun)
an official award (as for bravery or service) usually given as formal public statement
a message expressing a favorable opinion

commendation (verb)	commend (verb)
	express approbation of
	mention as by way of greeting or to indicate friendship
	express a good opinion of
	give to in charge
	present as worthy of regard, kindness, or confidence