foedere
foedere is a Latin form of foedus, meaning “treaty, agreement; (adj.) foul, disgraceful”. It is the ablative singular neuter noun.
Found 264 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 6.2.2: ulteriores temptant. Inventis nonnullis civitatibus iureiurando inter se confirmant obsidibusque de pecunia cavent: Ambiorigem sibi societate et foedere adiungunt.
All forms of foedus (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.