Butler
BUHT-ler
A surname-turned-given-name from an occupational term for a household steward or servant.
Meaning
Butler began as an occupational surname referring to a household officer or steward, originally a person in charge of wine and provisions. As a given name, it comes from the English surname tradition rather than from a biblical or saintly source. The excerpts you provided show it discussed among surnames and family names, not as a standalone Christian given name.
Origin
Old FrenchMiddle Englishmasculine
Fun fact
In older name books, Butler is treated as a surname first; its use as a first name is comparatively uncommon.
Confidence: mixed. Sources: History of Christian Names, Curiosities of Puritan Nomenclature.