I was having a bi*** of a time trying to remember this word. The desire to have it at hand has been recurring at least once a week for many months. Google has been no help until today when I finally found it via Thesaurus.com.
They define it as "overgeneral reasoning," by the way. I swear I looked for it there before under every synonym on that list. Today I found it under 'equivocation'. I probably looked for it under 'equivocate'; there may not be a verb form. I know I looked for it under 'sophistry' and 'sophism'.
I don't like what The Free Dictionary and Thesaurus.com have become.