commend vs commendation

commend is not a noun while commendation is a noun.

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

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

commend (verb)	commendation (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