Etymology

Nirosta

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Today it means: A form of stainless steel typically used to make blades. Full definition →

German nichtrostende Stähle
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The story

  1. German · derived fromnichtrostende Stähle“rustproof steel”
  2. English todayNirosta

Trade name, shortened from German nichtrostende Stähle (“rustproof steel”).

Etymology from Wiktionary, CC BY-SA 4.0.