Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
LADY
As described in historical dictionaries
Patronymica Britannica (1860)
LADY. There are several surnames of which this word forms part, and for â– which I cannot account, except upon the supposition that they are derived from some oath or invocation involving the name of " Our Lady," the Virgin Mary. They are Ladyman, Tiplady, Taplady, Toplady, and, strangest of all, Godlovemilady ! Shakelady is a known corruption of Shackerley. In the H.E. we have a Roger Ducedame or Sweetlady, and the Registrar General's cabinet of curiosities shows us a recent or existing Lovelady.