Douglas Harper's Etymology Dictionary
necessitation
1650s, noun of action from necessitate.
Wiktionary
necessitation
n. (context chiefly philosophy English) necessity, understood as a logical or other philosophical principle, or as a law or force of nature.
Usage examples of "necessitation".
SPIRIT OF THE PITIES But out of tune the Mode and meritless That quickens sense in shapes whom, thou hast said, Necessitation sways!
The human will is certainly sensuous, an arbitrium sensitivum, but not brutum, but liberum, because sensuous impulses do not necessitate its action, but there is in man a faculty of determination, independent of the necessitation through sensuous impulses.