sinister (Latin)
Where does "sinister" come from?
The Latin word 'sinister' originally meant 'left'[1]. It descended from the Proto-Italic form '*senisteros'[1]. One theory suggests a connection to the Proto-Indo-European '*senh₂-is-', which signifies 'more obtaining'[1]. This implies a euphemistic origin where the left side was viewed as the more favorable or gaining side, a perspective reflected in the Sanskrit verb 'sanoti' meaning 'to gain or procure'[1]. Over time, the meaning shifted from a simple directional term to denote 'perverse' or 'bad' and 'adverse' or 'hostile' qualities. This semantic evolution also reflects a complex history of regional superstition, where the word was once considered 'auspicious' for Romans but 'inauspicious' for Greeks.
Open questions
- The ultimate origin of the Proto-Italic '*senisteros' remains unclear and a matter of academic debate. [1]
- The derivation from the Proto-Indo-European '*senh₂-is-' is a proposed etymology based on the concept of euphemism rather than a settled historical fact. [1]
Full etymology tree
- sinister (Latin), 'left'
- inherited *senisteros (Proto-Italic)
- derived *senh₂-is- (Proto-Indo-European)
- derived *senh₂- (Proto-Indo-European), 'to obtain'
- derived *senh₂-is- (Proto-Indo-European)
- inherited *senisteros (Proto-Italic)
Cognates and doublets
- सनोति (Sanskrit)
Descendants and derived words
- sinister (English)
- sinistre (French)
- sinistre (Catalan)
- sinistre (Catalan)
- sinister (Danish)
- sinister (Dutch)
- sinistre (French)
- sinistro (Italian)
- sinistro (Italian)
- sinistro (Italian)
- sinistro (Portuguese)
- sinistro (Portuguese)
Sources
Updated August 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris