Introduction
Word families are groups of words that are sufficiently closely related to each other to form a ‘family’.
Words can be grouped into families in two main ways:
- they are similar in form;
- their meanings are related.
Here are two examples of form-based word families:
word – wordy – word (verb) – wording – word-list … (but not: worth, worry)
family – familiar – unfamiliar – familiarity – familiarise … (but not: famine, famous)
Each of these families is bonded by a common root word, although the resultant connections of meaning are also an important bonding feature.
Here are two examples of meaning-based word families:
big – little – size
dog – puppy – kennel
Why are word families important?
Form-based families are important because they reveal sometimes hidden patterns of spelling in words that children already know; for example, the verb root pronounced ‘seev’ is spelt ceive (receive, deceive, conceive), and always corresponds to ception in the corresponding noun (reception, deception, conception).
Meaning-based families are important because they reveal links and patterns of meaning in words that children already know; for example, many adjectives and nouns are related as in the trio big – little – size. The specific meaning relations they contain (see below) are also an important component of reasoning skills.
An understanding of word families also allows either the form or the meaning of unfamiliar words to be guessed with some confidence. For example, we can guess that someone using a skate-board is a skate-boarder engaged in skate-boarding, and if we see the word unteachability we can guess from knowledge of other word families that it means ‘state (-ity) of not (un-) being able to be (-abil-) taught (teach)’.
A sound understanding of word classes is important for the study of both kinds of word families.