Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
BAYLY
As described in historical dictionaries
Patronymica Britannica (1860)
BAYLY. "The Bailies or Baylys derived their name from their ancestors having anciently been bailiffs of the districts of Carrick, Kjle, and Cunningham, in Scotland." See Bayly of Ballyarthen, co. Wicklow, in B.L.G. See Bailey, &c.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English