4.2 Morphemes
B. The Definition of Morphemes
A morpheme is the smallest unit of meaning we have – that is, the smallest piece of a word that contributes meaning to a word. Example The word trainings has 3 morphemes in it: train-ing-s. To break a word into morphemes, try starting at the beginning of the word and seeing how far into the word you need to go to find a sub-part of the word that has some meaning. For example, in the word unbreakable, the first two letters un- are independently meaningful in a way that just the first letter, u-, is not – un- means something like „not (whatever)‟, and changes the meaning of the word it attaches to in a predictable way; sub-parts of un-, like u- or –n-, don‟t have this property. This means that un- is a morpheme. Morphemes are segments of the grammatical word which represent choices from a set of options forming a grammatical category. As an example let us see the article “a” and “an”. We see that both “a” and “an” (and the other sets) are „the same thing‟.
Then we will say that
these various sets of morphs realise the same morpheme. A morpheme can be defined as a minimal unit
having more or less constant meaning and more of less
constant form. („More or less‟ because... see below.) For
example, linguists say that the word buyers is made up of
three morphemes {buy}+{er}+{s}. The evidence for
this is that each can occur in other combinations of
morphemes without changing its meaning. We can find
{buy} in buying, buys, and {er} in seller, fisher, as well as
buyer. And {s} can be found in boys, girls, and dogs.
C. Kinds of Morphemes
Traditionally, there are two types of Morphemes:
1) Free Morphemes These have a tendency of standing alone and they are of two categories.
a) Lexical Morphemes
These do carry most of the semantic content of the utterance. E.g. Nouns, Verbs, Adjectives, and Adverbs.
b) Functional Morphemes These do signal grammatical information in a sentence. They also perform a logical function. E.g. Articles, Conjunctions, Pronouns, Demonstratives, Prepositions etc.
2) Bound Morphemes
Bound morphemes –in nature –cannot stand alone.
They must be attached to root, stem or bases. In
most cases bound morphemes are affixes (prefixes,
infixes, and suffixes)
There are affixes that can change the word class of
a particular word together with its meaning. These
are termed as Derivational Affixes/Morphemes
Eg work+er = worker
Teach +er = teacher
V=teach N=teacher
There are affixes that do not change the word class,
but they simply encode different grammatical functions like tense, number etc. These are called Inflectional Morphemes/Affixes
Tall+er = Taller
Adj= tall adj= taller
Katamba (1993, 2006) has come with a complementary view of categorizing morphemes. According to him Morphemes must be in 4 (four) categories.
(a) Roots
A root is a core part of a word, the word which
must be lexical in nature. A root must exist independent of affixes. A root cannot be segmented
further into smaller meaningful units. A root must
always be a lexical category. In most cases the root
must be a word.
A root therefore is an irreducible core part of a
word with absolutely nothing else attached to it. A
traditional thinking is that all roots are free morphemes but currently all roots are not necessarily
free morphemes, there are also bound roots.
Bound roots are foreign in origin and most of them are Latinate. These cannot stand alone unless they are attached to other elements. For example: 1) -mit = submit, transmit, commit 2) -ceive = receive, perceive, conceive 3) Pred- = predator, predatory, predation 4) Sed- = sedentary., sedent, sediment
(b)Affixes
An affix is a morpheme that only occurs when attached to some other morpheme or morphemes
such as roots or stems or bases. Prefix-is an affix
attached before the root, base or stem like re-, unin-, as in, re-write, un-kind, in-accurate. Suffix –is
an affix attached after the a root (or stem or base)
like –ly, -er, -ist, -ing, -s, etc. as in kind-ly, teach-er,
typ-ist, etc.
Infixes – infixes are not common in English language.
(c) Stems
A stem is a part of a word that exists before any inflectional affix. It is a right candidate with a possibility of receiving inflectional affixes. Stems can be best captured within the field of Inflectional Morphology. E.g. teacher-teachers, play-playing.
(d) Bases
A base is any unit to which all kinds of affixes can
be added. i.e. Bases can accept derivational and inflectional Morphemes. That‟s why it is said that all
roots are bases but all bases are not roots. The reasons for such a claim are:
1) A root by nature can accept either inflectional or
derivational morphemes.
2) Some bases can be segmented further into
smaller meaningful units (unlike roots)
Examples:
1) Careful = -root, -stem, +base
2) Read = +root, +stem, +base
3) Worker = -root, +stem, +base
4) Dog = +root, +stem, +base
5) Faith= +root +/-stem, +base