English
sinisterwise
From sinister + -wise.
Formed from sinister + -wise
Proto-Italic *senisteros
Latin sinister ‘left hand’
Late Latin sinextrum
Old French senestre ‘left’
Middle English sinistre ‘unlucky’
English sinister
Today it means
adv Sinister; on the left-hand side from the wearer's viewpoint.
Language periods are conventional ranges, not dates for this word.
Etymograph / sinisterwise