Etymology

aplomb

A1P3L1O1M3B3

Today it means: Self-confidence; poise; composure. Full definition →

French aplomb
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The story

  1. French · borrowed fromaplomb“plumb line”
  2. English todayaplomb

Unadapted borrowing from French aplomb (“plumb line”).

Etymology from Wiktionary, CC BY-SA 4.0.