IPA: /ˈrɛrɪti/
KK: /ˈrɛrɪti/
A thing that is uncommon or not often found; the quality of being unusual or infrequent.
The rarity of the gemstone makes it very valuable.
Rarity → It is formed from "rare" (from Latin *rarus*, meaning uncommon or infrequent) and the suffix "-ity" (meaning the state or quality of). The word "rarity" refers to the state of being rare or uncommon.
Think of something that is 'uncommon' ('rare') and the '-ity' that indicates a state or quality. This helps you remember that rarity means the quality of being rare.