'-ness' definitions:
Definition of '-ness'
From: GCIDE
- -ness \-ness\ [AS. -ness, -nyss, -nys; akin to OS. -nissi, nussi, D. -nis, OHG. -nissa, -nass[imac], -nuss[imac], G. -nis, -niss, Goth. -inasus.] A suffix used to form abstract nouns expressive of quality or state; as, goodness, greatness. [1913 Webster]