11th August 2020




DATE: 12th July, 2020

CLASS: Grade 5

SUBJECT: Grammar

TOPIC: Prefixes and Suffixes

Reference: Mastering English

Brief explanation

Notes for the Students

A prefix is a group of letters that are added to the beginning of a word. Most common prefixes are dis-, in-, un-, which make words negative.

e.g. kind  unkind

like   dislike

A suffix is a group of letters that are added to the end of a word. Some common suffixes are –ed, -ing, and –ly. The suffix –ed changes verbs to the past tense.

e.g call    called

die    died

when you add a prefix to a word, you should not change the spelling of the original words or the prefix.

  prefix meaning examples
1 a on afloat, abroad
2 ante before antenatal
3 bi two bicycle
4 de down descend
5 dis not disagree, disappear
6 ex out of export, exhale
7 fore before forenoon, forearm
9 lg not ignoble
10 in not injustice
11 im into import, immigrant
12 il not illegible, illegal
13 inter between international
14 mis wrong mislead, misfire
15 pre before presume
16 re repeat rewrite, resume
17 un not unpaid, unknown


A suffix is added after a word to change its meaning.

  suffix meaning examples
1 able able to eatable, portable
2 an connected with Nigerian, Italian
3. ante one who servant, attendant
4 dom connected with kingdom, wisdom
5 er one who teacher, driver
6 ess female princess, goddess
7 fy to make electricity, purity
8 less without careless, thoughtless
9 ment being government, agreement
10 ous noted for famous, notorious


Prefixes and suffixes are also called affixes.


Un, dis, er, ness, ig, fy, less, il, er, im

Add a suitable prefix or suffix selected from the list above to change the meaning of each of the following words:

  1. Kind
  2. Hair
  3. Power
  4. Noble
  5. True
  6. Like
  7. Pure
  8. Trade
  9. Literate
  10. Port