Rule reminder
Italian forms abstract nouns from adjectives in two main ways: -ezza (feminine) is added to adjectives ending in -o/-a and expresses a quality as a concept (bello → bellezza, stanco → stanchezza). The suffix -ità (feminine, stressed on the final -à) derives from adjectives ending in -le, -re, -ale, -ibile (possibile → possibilità, reale → realtà). Both correspond roughly to English -ness or -ity.
From 'bello' (beautiful), which noun means 'beauty'?