B2a letter or group of letters added at the end of a word to make a new word后缀,词尾
The suffix "-ness" added to the end of the word "sweet" forms the word "sweetness", changing an adjective into a noun.后缀 -ness加在 sweet 之后构成 sweetness,把形容词变成了名词。
More examples
In the word 'slowly', 'ly' is a suffix.
The suffix 'less' changes a noun into an adjective, meaning 'without'.