How do you know when to add or or ER?
While single-syllable verbs that end in -it will usually take the suffix -er and have the final T doubled (as in hitter, knitter, quitter, sitter, etc.), verbs with two or more syllables ending in -it are much more likely to take the suffix -or. For example: audit→auditor. credit→creditor.
What is the rule for adding er or or to the end of a word?
drop the e before adding 'er' or 'est'. Words ending in y… change the y into an i before adding 'er' or 'est'. Words that end with one vowel and one consonant need a double letter before adding 'er' or 'est'.
What does the suffix or /- er mean?
-er suffix forming nouns. a person or thing that performs a specified action: reader, decanter, lighter. a person engaged in a profession, occupation, etc: writer, baker, bootlegger.
Why do some words end in ER and others in or?
The distinction between -er and -or as the ending of agent-nouns is purely historical and orthographical: in the present spoken language they are both pronounced. In received spelling, the choice between the two forms is often capricious, or determined by other than historical reasons.