From Wiktionary, the free dictionary
From the Latin phrase nostrā culpā (“through our fault”), ablative case of nostra culpa (“our fault, guilt”), used in English by analogy with mea culpa.
nostra culpa
- (uncommon) Our fault, due to our error; we are to blame.
- Coordinate terms: mea culpa, tua culpa
nostra culpa (plural nostra culpas)
- (uncommon) An instance of nostra culpa; an apology on behalf of a group.
- Coordinate terms: mea culpa, tua culpa
