-ness
suffix
°Appended to adjectives to form nouns meaning "the state of (the adjective)", "the quality of (the adjective)", or "the measure of (the adjective)".
°Appended to words of other parts of speech to form nouns (often nonce words or terms in philosophy) meaning the state/quality/measure of the idea represented by these words.
synonyms: -hood, -ship, -itas, -itude more» , -th, -ia, -itia, -ity, -ability, -ibility, -icity, -osity