The -or suffix is primarily found in words derived from Latin, whereas -er can be put on the end of just about any verb that involves an agent (a 'doer' of the 'action').
How do you know if it is ER or OR?
The suffixes -er and -or are agentive suffixes, and -er is used with almost any agentive verb which is converted into a noun. The -or suffix has been seen to be used mostly with Latin words which end with -ate.
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.
What type of suffix is er?
ER (abbreviation) -er (adjective suffix or adverb suffix)