casus foederis

noun casus foe·de·ris \-ˈfȯidərə̇s -ˈfed-, -ˈfēd-\

Definition of casus foederis


casus foederis

  1. :  a case or event covered by the provisions or stipulations of a treaty or compact the casus foederis had arisen. When Italy attacked Ethiopia … no one could doubt … that … it had been in breach of the clearest obligations of the Covenant — Robert Cecil †1958

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of casus foederis

New Latin, case of the treaty

Seen and Heard

What made you want to look up casus foederis? Please tell us where you read or heard it (including the quote, if possible).


to cast off or become cast off

Get Word of the Day daily email!