Where does “jailkeeper” come from?

jailkeeper (English) comes from English jail, from Middle English gayole, from Old French gaiole, from Medieval Latin gabiola, from Late Latin caveola, from Latin cavea, from Latin cavus, from Proto-Italic kawos — to swell; to be strong.

jailkeeper (English): One who keeps a jail; a jailer

Definitions

  1. One who keeps a jail; a jailer

Ancestry of “jailkeeper”, step by step

jailkeeper traces back through two separate lines of ancestry.

via English jail

StepLanguageWordMeaning
1EnglishjailA place or institution for the confinement of...
2Middle Englishgayolejail, prison place for [[confine
3Old Frenchgaioleprison; gaol; jail
4Medieval Latingabiola
5Late Latincaveola
6Latincaveahollow, cavity; cage, den, enclosure, stall,...
7Latincavushollow, concave; excavated, channeled;...
8Proto-Italickawos
9Proto-Indo-Europeanḱowh₁óshollow
10Proto-Indo-Europeanḱewh₁-to swell; to be strong

via English keeper

StepLanguageWordMeaning
1EnglishkeeperOne who keeps something; A person or thing worth...
2Middle Englishkepere
Every word from Proto-Indo-European ḱewh₁-