inter nos

listen to the pronunciation of inter nos
İtalyanca - İngilizce
between ourselves, between the two of us, involving only the two of us
İngilizce - İngilizce
Between ourselves

Never could she survive that common loss; / But just suppose that moment should betide, / I only say suppose it—inter nos. / (This should be entre nous, for Julia thought / In French, but then the rhyme would go for naught.).