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
