The name Gläser (Gleser) is due to the given name Nicholas. Nicholas was bishop of Myra (4th century), in Asia Minor. He was in the 2nd Half of the Middle Ages the most popular of saints according to John. There are a variety of forms of the name sensitive. The reasons for this include: 1 Niko, Nikolaus, Niklas, classes, etc. 2: The foreign name Nicholas was at its "Germanization" are broken down in different ways, eg These forms were in the different dialects spoken and written, eg: Nick, Nigg, Klas, toilets, etc. 3 These different forms could Verkleinerungssuffixe wrden attached, for example: Niggli, Nitz, Kloske, Klosel, etc. 4 Clösle Were from developed under 1-3 nicknames are formed by various suffixes family name, eg: Let Nick, Nicholas, Klaus Mann, Kläsing, Klauser, Kleser, Gläser etc. (Based on E.Schwarz, Dt. Onomastics and A. Bach, Dt. onomastics)