perfidiam
perfidiam is a Latin form of perfidia, meaning “treachery, faithlessness”. It is the accusative singular feminine noun.
Found 47 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 7.5.5: ausi domum revertuntur legatisque nostris renuntiant se Biturigum perfidiam veritos revertisse, quibus id consili fuisse cognoverint, ut, si flumen transissent, una ex parte ipsi, altera Arverni se circumsisterent.
Plautus, Pseudolus 4.1.944: Vt ego ób tuam, Simia, pérfidiam te amo et métuo et magni fácio.
Curtius Rufus, Historiarum Alexandri Magni 5.13.25·2: … e et magno cum honore ad suos deferri iussisse, ut regio Persarum more curatum monumentis maiorum inferretur. Perfidiam hominum, a quibus pro summis beneficiis crudelissimum exitium Dareus pertulit, quamquam suapte natura horrend …
All forms of perfidia (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.