Etymology

oyabun

O1Y4A1B3U1N1

Today it means: The absolute leader of a yakuza clan. He has an advisor called a saiko-komon. Full definition →

Japanese 親分
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The story

  1. Japanese · borrowed from親分
  2. English todayoyabun

Borrowed from Japanese 親分 (literally “foster parent”).

Etymology from Wiktionary, CC BY-SA 4.0.