Etymology

black belt

Today it means: The highest belt colour in various martial arts. Full definition →

Japanese 黒帯
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black belt · noun1

  1. Japanese · calque of黒帯
  2. English todayblack belt

Calque of Japanese 黒帯 (kuroobi).

black belt · noun2

From black + belt, originally named after the dark soil.

Etymology from Wiktionary, CC BY-SA 4.0.