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Webster 1913 Edition

(jē̍-nĕt′ĭ-kal)

Adj.

[See

Pertaining to, concerned with, or determined by, the genesis of anything, or its natural mode of production or development.

This historical,

genetical

method of viewing prior systems of philosophy.

Hare.

genetical ‎(not comparable)

genetic
- 1832, Carlyle, Sartor Resartus:
  […] and either 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.