osság
Osság is a Hungarian suffix used to form abstract nouns that denote a state, condition, or quality derived from an adjective or noun. It is part of the productive system of noun formation in Hungarian, commonly grouped with the closely related suffixes -ság and -ség. The suffix occurs in different spellings, typically as -osság or -sság, with phonological adjustments that preserve pronunciation depending on the preceding stem.
Common examples include magasság (height), hangosság (loudness or sonority), and nyilvánosság (public sphere or publicity). These
Usage notes: osság is widely used in everyday language as well as in formal or technical registers.