This is the -ness suffix
A suffix is a group of letters that go at the end of a word to give it meaning
When we add -ness to a base word, we do not need to change the base word
Adding -ness to an adjective turns it into a noun
Word Lists
-ness
braveness
childishness
darkness
fairness
foolishness
kindness
lateness
suddenness
wickedness
willingness
sinfulness
business
forgiveness
wilderness
thickness