Etymology

yestermonth

Y4E1S1T1E1R1M3O1N1T1H4

Today it means: Last month; a few months ago. Full definition →

English month ← Middle English yister-
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The story

  1. Middle Englishyister-
  2. Englishyester-
  3. Englishmonth
  4. English todayyestermonth

From yester- + month.

Etymology from Wiktionary, CC BY-SA 4.0.