An Irish-Canadian poet told me that my last name, Stimpson, comes from glimpse. What is the actual etymology of the proper name and the common noun? Are they related? When did they first appear in the English language?
Did you ask the poet what (according to him) is the language of origin?
I would agree with @St.John about his find in the surname dbs, namely that this is a patronymic based on Stephen.
Also, have a look at this NGram: