Etymology of the English word infallible
the English word
infalliblederived from the Latin word
infallibilis (infallible, not liable to err or lead into error)
using the Latin prefix
in- (suffix for no)
derived from the Proto-Indo-European root
*ne (not)
derived from the Latin word
fallere (deceive; slip by; disappoint)
derived from the Latin word
facere (to make; act, take action, be active; compose, write; classify; do, make; create; make, build, construct; produce; produce by growth; bring forth)
derived from the Proto-Indo-European root
*dhē-Usage
Word found in Modern English
