Morphology is the branch of linguistics that deals with the internal structure of words and how they are formed.

Adding a suffix to a word is an example of a morphological process because it changes the meaning or grammatical function of the word.

A morpheme is the smallest unit of meaning in a language. It can be a root, a prefix, or a suffix.

A monomorphemic word is a word that consists of a single morpheme.

A polymorphemic word is a word that consists of two or more morphemes.

The root is the basic form of a word, before any affixes are added.

A prefix is an affix that is added to the beginning of a word.

A suffix is an affix that is added to the end of a word.

An infix is an affix that is added inside a word.

A circumfix is an affix that is added around a word.

Affixation is the process of adding an affix to a word.

Compounding is the process of creating a new word by combining two or more existing words.

Inflection is the process of changing the form of a word to indicate its grammatical function.

Derivation is the process of creating a new word from an existing word by changing its meaning.

Semantics is the study of the relationship between form and meaning in language.