The origins the old family name Messmer can be found within medieval Austria. While the patronymic and metronymic surnames, which are derived from the name of the father and mother respectively, are the most common form of a hereditary surname in Germany, occupational surnames also emerged during the late Middle Ages. Many people, such as the Messmer family, adopted the name of their occupation as their surname. However, an occupational name did not become a hereditary surname until the office or type of employment became hereditary. The surname Messmer was an occupational name for a knife maker. Further research revealed that the name is derived from the Old German word messer, meaning knife, and is often attached to the word schmidt, meaning smith or craftsman.

세줄요약
중세 오스트리아/독일 등지의 도검 작인 가문의 성임
날을 의미하는 옛 독어 messer가 어원임(그로스메서의 그 메서 맞음)
메스메르의 특징과 관계가 있을지는 나도 몰?루