Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
GLAISTER
As described in historical dictionaries
Patronymica Britannica (1860)
GLAISTER. Probably tlie same as Glenister, a local name, though glaistcr in Scotland signifies a thin covering of snow or ice. Jamieson. Again, Glasterer means a boaster. Ibid.