Definition of "genetical"

[E]ither in the authentic lineaments of Fact, or the forged ones of Fiction, a complete picture and Genetical History of the Man and his spiritual Endeavour lies before you.

1831, Thomas Carlyle, “Prospective”, in Sartor Resartus: The Life and Opinions of Herr Teufelsdröckh. […], London: Chapman and Hall, […], book first, page 51

this historical, genetical method of viewing prior systems of philosophy

1826, Julius Hare, Guesses at Truth by Two Brothers