Etymology of the English word inflexible
the English word
inflexiblederived from the Latin word
inflexibilis (unbendable; inflexible)
derived from the Latin word
in-derived from the Latin word
flexibilis (flexible, pliant)
derived from the Latin word
flexus (bent; turning, winding; swerve)
derived from the Latin word
flectere (bend, curve, bow)
using the Latin prefix
in- (suffix for no)
derived from the Proto-Indo-European root
*ne (not)
Date
The earliest known usage of inflexible in English dates from the 14th century.