Etymology of the French word insane
the French word
insanederived from the English word
insanederived from the Latin word
insanus (mad, raging, insane)
using the Latin prefix
in- (suffix for no)
derived from the Proto-Indo-European root
*ne (not)
derived from the Latin word
in-derived from the Latin word
sanus (sound; healthy; sensible)
Date
The earliest known usage of insane in French dates from the 18th century.
