Difference between word form and cognate words.

Words that seem similar at first glance may raise doubts: they are the same root or are forms of the same word. On this score, grammar gives a clear answer.


Language concept " form" means that a word belongs to specific grammatical categories. For example, the word "writers" is a plural noun.

Single-root words are words with a common main morpheme - the root. Identical and homonymous roots should not be confused. For example, the words "water" and "drive" are not the same root.


Thus, to put a word in a different form, you need to change it according to some grammatical feature. Variable signs in different parts of speech do not always coincide. So, words from a group of nouns change in cases (ball - ball - ball) and numbers (cat - cats), but their gender is constant ("table" will never be feminine). And adjectives change freely by gender (blue - blue - blue).

The difference between the form of the word and the same root words is that during the formation of the form, the part of speech remains the same. In this case, the meaning of the word being changed is also preserved - it continues to indicate the same object or some characteristic. More often than not, only the ending becomes different. Some words form forms with different roots (go - went).

In the same-root words, in turn, the part of speech is not necessarily the same (mountain - mountain). In addition, despite the common root, they can differ markedly in lexical meaning (forester - woodland). Very often, prefixes and suffixes are involved in the formation of single-root words.

The two discussed categories of words differ in the functions they perform. Single-root words make the language fuller, richer, while shaping is necessary to build coherent phrases and sentences, where all parts of the structure must be consistent with each other.

What is the difference between the form of a word and cognate words yet? The fact that each word has a fixed set of forms and it is impossible to add something new to the existing one. At the same time, the formation of single-root words has practically no restrictions. For example, the word "pilot" appeared when the corresponding profession appeared. Meanwhile, the words "fly", "flight" existed by that time for a very long time.


Forms of any word Single-root words
Part of speech - the samePart of speech can change
Identical in meaningDiffer in meaning
The ending is predominantly a formative morpheme.Prefixes and suffixes are more often involved in their formation. 44) Replenish the lexical composition of the language
Their number is limited for each wordNew ones may appear