Etymology

janitorial

J8A1N1I1T1O1R1I1A1L1

Today it means: Of or pertaining to a janitor. Full definition →

Proto-Indo-European *h₂élisder.? ← English janitor
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The story

  1. Englishjanitor
  2. Proto-Indo-European*h₂el-
  3. Proto-Indo-European*h₂élisder.?
  4. English todayjanitorial

From janitor + -ial.

Etymology from Wiktionary, CC BY-SA 4.0.