Sort 18: Suffixes –ic, -ity/-ty, -ous
-ic
comic
metallic
historic
tragic
poetic
realistic
artistic
-ity/-ty
peculiarity
density
sensitivity
similarity
vanity
frailty
loyalty
royalty
certainty
-ous
famous
glorious
poisonous
glamorous
hazardous
humorous
mountainous
adventurous
*-ic means “relating it”, -ity and –ty mean “the state of quality of”, -ous means “full of”
*Words ending with –ic or –ous are adjectives and words ending with –ity/-ty are nouns.