(i) Suffixes forming Nouns
- The following suffixes denoting the agent or doer:
-er, -ar, -ard, -art, -or, -eer,- -ist,
singer, liar, coward, braggart, sailor, mountaineer, artist.

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- The following suffixes denoting state or condition (abstract nouns):
-dom, -hood, -ness, -th, -t, -ery, -ship,
freedom, manhood, darkness, width, height, roguery, friendship.
- The following suffixes forming diminutives:
-ling, -cle, -en,
duckling, gosling, particle, kitten.
- The following suffix has a feminine ending:
-ess
actress, waitress, lioness.

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(ii) Suffixes forming Adjectives
- Suffix made of:
-en
Golden, woollen.
- Suffix possessing the nature of, somewhat:
-ish
foolish, childish, blackish, sweetish.
- Suffix forming without:
-less,
useless, penniless (that is me!), homeless, clueless.
- Suffix with the quality of:
-y,
healthy, greedy, needy, speedy.
- Suffix with like:
-ly
womanly, manly.
- Suffix with able, capable of:
-able, -ible,
eatable, edible, legible.
- Suffix with full of:
-ous [Latin osus],
famous, numerous.

(iii) Suffixes forming Verbs
- Suffix to make:
-en
***stiffen, soften.
- to make:
-fly,
magnify, purify.
- to make:
-ize (also written as ise)
civilize, realize.
Suffixes forming Adverbs
- Suffix with like:
-ly
bravely, sweetly.

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Very useful information on word morphology .