Etymology Explorer › English

Where does “MAD” come from?

MAD (English) comes from Middle English mad, from Old English ġemǣd, from Proto-Germanic maidijaną, from Proto-Germanic maidaz, from Proto-Indo-European mēy- — soft, tender, dear.

MAD (English): Initialism of mutually assured destruction;...

Definitions

  1. Initialism of mutually assured destruction;...

Ancestry of “MAD”, step by step

StepLanguageWordMeaning
1Middle EnglishmadMad, insane, deranged; not of sound mind;...
2Old Englishġemǣd—
3Proto-Germanicmaidijanąto exchange, change
4Proto-Germanicmaidazhurt, wounded; mad, foolish; angry, enraged
5Proto-Indo-Europeanmēy-soft, tender, dear
Every word from Proto-Indo-European mēy- →