Any form to which any derivational suffixes can be added.

A word that consists of one root morpheme (bound or free) and at least one derivational affix.

Affixes that are used to create new words. Such affixes are not required by the grammatical context.

A way of representing the internal structure of words using square brackets to mark the base of each word contained within.

The point in a tree diagram from which two branches sprout.

A word that consists of one root morpheme.

A stem is what remains after the removal of inflectional suffixes.

A diagram that has a branching structure like that of a tree which is used to represent the successive steps of the affixation process.