Word: cariousness
Part of speech: Noun
Syllables: car
i
ous
ness
Definition: the state or quality of being carious, an advanced state of corrosion.
Morphemes:
Affix: carious
Language: en
PoS: Adjective
Meaning: Having caries (bone or tooth decay); decayed, rotten.
Etymology Compounds: Affix: carie
Language: fr
Decoded: carie
Meaning: decay 
Affix: -eux
Language: fr
Decoded: -eux
Meaning: -ous
Affix: -ness
Language: en
PoS: Suffix
Meaning: Appended to adjectives to form nouns meaning "the state of being (the adjective); the quality of being (the adjective)", or "the measure of being (the adjective)".
Etymology Compounds: Affix: -atjaną
Language: gem-pro
Decoded: -atjana
Meaning: -atjaną
Affix: -þuz
Language: gem-pro
Decoded: -thuz
Meaning: -þuz