1. TYPES OF MORPHEME (ROOTS, AFFIXES, STEMS, BASES)
MORPHOLOGY
TYPES OF MORPHEME
(ROOTS, AFFIXES, STEMS, BASES)
Morphology is the study of word

2. example : walk, run, book, potato, cucumber
ROOT (FREE MORPHEME)
A root is irreducible core of a word, with absolutely nothing else attached to it.
example : walk, run, book, potato, cucumber
Roots which are capable of standing independently are called free morpheme.

3. While only root cam be free morpheme, not all roots are free
While only root cam be free morpheme, not all roots are free. Roots are not capable of standing alone called Bound Morpheme.
example :
-mit  permit, submit, remit, commit, admit
-ceive receive, perceive, conceive
-pred predator, predatory, prediction,

4. Affix
An affix is a morpheme which only occurs when attached to some other moepheme such root, stem, base.
prefix  re-read, un-tidy, un-kind
suffixe  quickly, walk-ed, book-s, walk-er
infix (rere in English) –cub- , incubus, incubate, concubine,

5. Stem and Base
Stem
Part of the word that is existence before any inflectional affixes (Plural/Singular/tense)
example
Noun Stem
Plural
Book -s
Worker
etc

6. Base
any unit which affixes of any kind can be added.
the affixes attached base could be inflectional or derivational affixes.
example
boy  boys/ boyish
all roots are bases. Bases are called stem only in the context of inflectional morphology.

7. Unfaithful window-cleaners Faithfulness hardships
Find out
Faiths frogmarched
Faithfully bookshops
Unfaithful window-cleaners
Faithfulness hardships