Suffix -ness

      A suffix is a group of letters placed at the end of a word to make a new word. A suffix can make a new word in one of two ways: inflectional (grammatical): for example, changing singular to plural (dog > dogs), or changing present tense to past tense (walk > walked). In this case, the basic meaning of the word does not change; and derivational (the new word has a new meaning, "derived" from the original word): for example, teach > teacher or care > careful.  
     -ness suffix belongs to the latter group. This native English suffix attached to adjectives and participles, forming abstract nouns denoting quality and state (and often, by extension, something exemplifying a quality or state)

----------  amabilidad

-----------   mareo

-----------  conciencia
-----------   ceguera

-----------  debilidad
-----------  espesor

----------   pereza

----------    dulzura
----------    locura

----------   fealdad
 
   
    Here you have one of my regular lists with more words you expand your vocabulary a little more.  Do not forget to enter in Spelling City here, and thus learn.

stuffiness --- mala ventilación
happiness --- felicidad
thoughtfulness --- consideración
thoughtlessness --- irreflexión
forgetfulness --- olvido
hopelessness --- desesperación
viciousness --- crueldad
helpfulness --- utilidad
wantonness --- desenfreno
bashfulness --- timidez
listlessness --- laguidez

faithfulness --- fidelidad

madness  --- locura

redness --- rojez

darkness --- oscuridad

hardness --- dureza

strictness --- rigor

sadness --- tristeza