A suffix is an affix which is placed after the root of a word.
Some languages allow multiple affixes after a root, for example in English the word unforeseeability consists of a prefix, a (compound) root, and two suffixes:
| un- | fore-see | abil | -ity |
| PREFIX- | ROOT | SUFFIX | -SUFFIX |
In some languages, hyphens are used to show how words are broken up into different morphemes.