Word endings can change a word — Language, 7–10 years
See how an ending added to a word can change its meaning or turn it into a different kind of word.
An ending can build a new word
A suffix is a group of letters added to the end of a word. It can make a new word or show a new job for the word. In English, “teach” becomes “teacher”, and “help” becomes “helpful”. The base word gives us a clue to the new meaning.
Why make word families?
People need to name new people, qualities and actions without inventing a completely unrelated word each time. Endings let speakers extend a word family and show connections between ideas. They are useful clues, but they do not give a perfect meaning for every word.
From “kind” to “kindness”
Start with “kind”, meaning caring and gentle. Add “-ness”, an ending that can name a quality: kind + ness = kindness. Now “kindness” is the quality itself, as in “Her kindness helped the lost child.” The ending changed the word’s job.
A suffix is not a guaranteed code
It is tempting to split every ending and guess the meaning. That can fail: “corner” contains “-er”, but it does not mean a person who “corns”. This mistake is reasonable because many endings really do help. Check the whole word and its sentence before deciding.
Guessing an unfamiliar word
When a book uses an unfamiliar word, its ending may give you a first clue. “Careless” probably describes someone or something without care; “carefully” probably tells how an action happens. Then use the sentence and a dictionary to check your guess.
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