Geiger means "fiddle player."
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Balázs Déri thinks :
Some Geiger families may descend from Ge-yeg-ga,at a time before expulsion from the Holy Land in Asia chief of the whole tribe of Ar-Ra-'ayab-Ban-Na in R'ibban-Guo,ancestor of arban-as nation called gég until today,descendents of Aw-ya-'a-La.
See : Moldván !
Jews and christians pronounce their names as Gog,Re'uben and Yo'el.