Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
FUST
As described in historical dictionaries
Patronymica Britannica (1860)
FUST. This nams appears in the archives of Switzerland, Germany, &c., in early times, in the various forms of Faustus, Faust, Vaust, First, Furst, Futz, &c. Faust or Fust, the eminent piinter of