English
sinisterity
From sinister + -ity.
Formed from sinister + -ity
Proto-Italic *senisteros
Latin sinister ‘left hand’
Late Latin sinextrum
Old French senestre ‘left’
Middle English sinistre ‘unlucky’
English sinister
Today it means
noun Sinisterness.
Language periods are conventional ranges, not dates for this word.
Etymograph / sinisterity