Every English poet should master the rules of grammar before he attempts to bend or break them.
1895 - 1985
English poet, critic
Words have been categorized in grammar on how they are used, or as parts
verb, noun, pronoun, adjective, adverb, preposition, conjunction, and interjection.
Words also have "roots" which convey their basic meaning. Suffixes are groups of letters (afixes!) placed after a root word to form a new word, change its part of speech, and modify its meaning. For example:
change (noun) + able (suffix) = Changeable (adjective) or the ability to be changed.
work (noun) + able (suffix) = workable (adjective) or the ability to be worked.
week (noun) + ly (suffix) = weekly (adverb), or an action or activity done by the week.
happy (adjective) + ly (suffix) = happily (adverb) an action is done in a happy state
moprh (verb) + ology (suffix) = morphology (noun), or the study of how words change
Here are some spelling rules for applying suffixes to root words: