rose vs rosy

rose is a noun but rosy is not a noun.

Word	Noun	Adjective	Verb	Adverb
rose	Yes	Yes	No	No
rosy	No	Yes	No	No

rose (noun)	rosy (noun)
a dusty pink color
pinkish table wine from red grapes whose skins were removed after fermentation began
any of many shrubs of the genus Rosa that bear roses

rose (adjective)	rosy (adjective)
of something having a dusty purplish pink color	presaging good fortune
	of blush color
	having the pinkish flush of health
	reflecting optimism