assassin (English)

Where does "assassin" come from?

The English word 'assassin' entered the language through French 'assassin' or Italian 'assassino'[1], both tracing back to Arabic roots[2][3]. The term derives from Arabic 'ʔasāsiyyīn', meaning 'people who are faithful to the foundation [of the faith]', alongside the folkloric etymology 'ḥaššāšīn', meaning 'hashish users; low-lives'[1]. Beyond its primary meaning as a professional or intentional killer, a mathematical sense was later introduced by Bourbaki, playing on operator notation where an associated prime acts to kill an element[1].

Full etymology tree

• assassin (English), 'Someone who intentionally kills a person, especially a professional who kills a public or political figure.'
  • derived assassin (French), 'an assassin or other murderer'
    • derived حَشَّاشِين (ḥaššāšīn) (Arabic)
    • derived أَسَاسِيُّون (ʔasāsiyyūn) (Arabic)
  • derived assassino (Italian), 'assassin, hitman'
    • derived حَشَّاشِين (ḥaššāšīn) (Arabic)
    • derived أَسَاسِيُّون (ʔasāsiyyūn) (Arabic)

Ancestors

• assassin (French)
• assassino (Italian)

Descendants and derived words

• assassinate (English)
• assassinate (English)
• assassination (English)
• assassinator (English)
• assassinatress (English)
• assassinatrix (English)
• assassin bug (English)
• assassin fly (English)
• assassinism (English)
• assassinlike (English)
• assassinous (English)
• assassinship (English)

Sources

1. assassin (English) - Wiktionary
2. assassin (French) - Wiktionary
3. assassino (Italian) - Wiktionary

Updated August 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris