Etymology

janitor

jan·i·tor
J8A1N1I1T1O1R1

Today it means: Someone who looks after the maintenance and cleaning of a public building. Full definition →

Latin ianitor
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The story

  1. Latin · derived fromianitor“doorkeeper”
  2. English todayjanitor

From Latin ianitor (“doorkeeper”).

Etymology from Wiktionary, CC BY-SA 4.0.