1867 C. L. Dodgson in Proc. Royal Soc. 1866–7 15 152 I shall use the word ‘adjugate’ in the following sense:—if there be a square block, and if a new block be formed, such that each of its terms is the determinant of the complemental minor of the corresponding term of the first block, the second block is said to be adjugate to the first.

1882 T. Muir Treat. Theory Determinants ii. 135 The determinant each of whose elements is the co-factor of the corresponding element in another determinant is called the determinant adjugate to that other.

1929 H. W. Turbull Theory Determinants, Matrices, & Invariants iv. 70 There still exists the matrix of elements [αji] where αij is the co-factor of a_ij in |A|... This is called the adjugate matrix.

1966 Math. Rev. 31 34/2 (title) On the perturbation of eigenvectors and eigenvalues of matrices involving generalized adjugate vectors.

2007 J. Gentle Matrix Algebra iii. 51 (heading) Minors, cofactors, and adjugate matrices.

1882 T. Muir Treat. Theory Determinants ii. 141 All the minors of the adjugate which are of a higher order than the first must also be equal to zero.

1929 H. W. Turbull Theory Determinants, Matrices, & Invariants iv. 67 The determinant..is called the adjugate of Δ. Its elements are the co-factors of the corresponding elements of Δ.

1962 Math. Rev. 23 a599/1 Let A^* denote the adjugate of a real n x n matrix A.

2007 J. Gentle Matrix Algebra iv. 147 The fact that the determinant is a continuous function immediately yields the result that cofactors and hence the adjugate are continuous.

1730 N. Bailey et al. Dictionarium Britannicum Adjugate, to yoke or couple to.

1796 R. G. Waterhouse Diary in E. W. Layman R. G. Waterhouse (1996) ix. 79 My father, Henry Waterhouse..was early in life adjugated to my mother, Elizabeth Green.