a. Obs. [f. L. essenti-a being or essence + -FIC + -AL (after mod.L. essentificus).] Forming or producing the essence of a thing.
1656. [? J. Sergeant], trans. T. White’s Peripat. Inst., 210. Now, naturall Things are naturall parts of the world, unerringly flowing from the Essentificall Idea’s.
1662. J. Chandler, Van Helmont’s Oriat., 144. Although the formall light doth shine; yet its act is not terminated in shining, but in an essentificall thingliness.
