Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
STAGE
As described in historical dictionaries
Patronymica Britannica (1860)
STAGE. A corruption either of Eustace, or of Statins. It is probably of continental origin, as the final E is sometimes accented, and from Stace we get Stacey.