Word: terribleness
Part of speech: Noun
Syllables: ter
ri
ble
ness
Definition: The characteristic of being terrible.
Morphemes:
Affix: terrible
Language: en
PoS: Adjective
Meaning: Very bad; lousy.
Etymology Compounds: Affix: terreō
Language: la
Decoded: terreo
Meaning: I frighten, terrify, alarm; I deter by terror, scare 
Affix: -ibilis
Language: la
Decoded: -ibilis
PoS: Suffix
Meaning: -able; able or worthy to be (the recipient of an action).
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