The word luthier is obviously related to the word lute, and lutanist and so on, but it has a kind of lisp sound about it, as though someone was trying to say the name Lucia.
Okay, that was totally irrelevant, and I shouldn't make fun of anyone who has a lisp. However, the word lisp has a long history, going back before the year 1100 at least, and connects the Middle English words, whlispen or lispen, to the Old English word āwlyspian, and is like the Dutch word, lisp and the German word lispeln. There you go, didn't know you were going to get a lesson on the origin of words.
You can find out more about Greg Bennett guitars here:
I assume the man in the picture is Greg Bennett, and not just some model smiling and holding a Greg Bennett guitar...