English
gaoler
By surface analysis, gaol + -er.
Equivalent to gaol + -er
Proto-Italic *kawos
…
Latin cavea ‘cavity, coop, cage’
Late Latin caveola ‘little cage’
Medieval Latin gabiola
Middle English gayole ‘jail, prison’
English gaol
Today it means
noun Dated spelling of jailer.
Language periods are conventional ranges, not dates for this word.
Etymograph / gaoler