SUFFIXES
A suffix is word which is added to the and of a primary word to form a new meaning. Here are the principal English suffixes that you have to practice as in the following:
A. Of nouns ( from other part of speak to nouns)
1. Denoting doer or agent and instrument
• Er : painter, lawyer, baker, etc
• Or : actor, legislator, reflector, predator , etc
2. Denoting state, action, condition
• Dom : freedom, wisdom, etc
• Hood : manhood, childhood, brotherhood, etc
• Ness : goodness, darkness, sweetness, etc
• Ship : membership, hardship, friendship, etc
B. Of adjectives
• Ed : gifted, interested, learned, etc
• En : wooden, woolen, earthen, etc
• Ful : fruitful, watchful, joyful, etc
• Ish : girlish, brutish , childish, etc
• Less : fearless, hopeless, meaningless., etc
• Some : handsome, quarrelsome, etc
• Ly : manly, kindly, lovely, etc
• Y : wealthy, healthy, greedy, etc.

DERIVATIVES

Prefixes
A Prefix is a short form, consisting of one or two syllables, used before another form. It modifies the meaning of the word to which it is added. But it does not usually change the part of speech of the word the question.
Here are the most used prefixes in English
Re = (again) as; react , recall, remarry, etc
Un = (not, contrary ) as; unload, unbulton, unlock, etc
In = (not, contrary) as; independent, indirect, informal, etc
Mis = (false, not) as; miscalculate, mismanagement, misconduct, etc
Dis =( not, reversal) as; disagreement, disarm, disclose, etc
Over =(above) as; overpopulation, overcharge, overflow, overtime , etc
Under=(below) as; undergo, undersell, underestimate, etc.