suffixation

Imagine starting with a simple word and then adding a small ending to it to make something new. That is what suffixation means. It is the process of adding a suffix, a group of letters at the end of a word, to change its meaning or its grammar.

For example, "happy" becomes "happiness" when you add "-ness." "Teach" becomes "teacher" when you add "-er." Sometimes the new ending changes the kind of word, and sometimes it adds grammar such as tense or number. This pattern appears all through English, and it helps explain how many words are built.

Suffixation is the process of adding a suffix, or word ending, to the end of a base word. This added part can create a new word, change the word class, or mark grammar. In English, it is one of the most common ways words grow and connect to each other.

Unlike a prefix, which comes before a word, a suffix comes after it. A suffix can change an adjective into a noun, as in "happy" to "happiness," or a verb into a noun, as in "teach" to "teacher." It can also mark grammar, as in "walk" to "walked" or "book" to "books." In other cases, it changes the meaning without changing the basic idea, as in "care" to "careful."

This matters because suffixes help us see patterns in English. When you notice endings like "-ness," "-er," "-ly," or "-tion," you can often make a good guess about what a word means or how it works in a sentence. For example, "create" becomes "creation," and "quick" becomes "quickly." Learning these patterns makes vocabulary easier to understand, remember, and use.