rosemaling vs ornamentation

rosemaling and ornamentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
rosemaling	Yes	No	No	No
ornamentation	Yes	No	No	No

As nouns, ornamentation is a hypernym of rosemaling; that is, ornamentation is a word with a broader meaning than rosemaling:

rosemaling: a Scandinavian style of carved or painted decoration (as on furniture or walls or dinnerware) consisting of floral motifs
ornamentation: something used to beautify

Other hypernyms of rosemaling include decoration, ornament.

rosemaling (noun)	ornamentation (noun)
a Scandinavian style of carved or painted decoration (as on furniture or walls or dinnerware) consisting of floral motifs	the act of adding extraneous decorations to something
	something used to beautify
	the state of being ornamented