Glass - Wikiwand

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Glass (surname)

Wikipedia

As an English, Jewish and German surname, from the noun glass.
Also as an English surname, from a nickname derived from French glas (“bell, tumult, clash of arms”).
As a Celtic surname (Irish, Welsh, Cornish, and Scottish Gaelic), Anglicized from the adjective glas (“grey”).
Also as a German surname, altered from the personal name Klass, shortened from Nikolaus, compare Nicholas.
As a Slovene surname, Americanized and Germanized from Glas.

Glass