# lethiferous

> English word · Adjective

## Definitions
1. Deadly, lethal.

## Etymology
Borrowed from Latin lethifer, letifer, from lethum, letum (“death”) + ferre (“to bear, to bring”). Compare French léthifère.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/lethiferous