LETHAL


Meaning of LETHAL in English

■ adjective

1》 sufficient to cause death.

2》 very harmful or destructive.

Derivatives

~ity noun

~ly adverb

Origin

C16: from L. ~is , from lethum , a var. (influenced by Gk lēthē 'forgetfulness'), of letum 'death'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.