English has a few suffixes that can make abstract nouns out of adjectives. There's the relatively rare –cy, which turns fluent into fluency and idiot into idiocy, and there's the more common –ty or ...

THE word ‘fidelity’ (from Latin fides) is synonymous with faith. Fidelity and faith are examples of abstract nouns, which describe emotions, ideas, concepts; in fact, anything that is not physically ...