Inspired by this question What is the meaning of the suffix 'don'?, I wonder if there is an easy on-line reference that would make this a 'general reference' question.
It could easily be on an ESL site or a high school/jr high vocabulary improver site. These are things that just don't appear in dictionaries. I noticed though that there was 1 close vote because of general reference and I thought that this -should be- general reference but I just don't know of an easy way for people who don't know these things to look for them.