Definition of "coherency"

even in all things therein created, there must be some image, somewhat resembling, and having coherencie with the workeman that wrought and framed them.

1603, Michel de Montaigne, chapter 12, in John Florio, transl., The Essayes […], book II, London: […] Val[entine] Simmes for Edward Blount […]

By ten o’clock the police organisation, and by midday even the railway organisations, were losing coherency, losing shape and efficiency, guttering, softening, running at last in that swift liquefaction of the social body.

1895–1897, H[erbert] G[eorge] Wells, “The Exodus from London”, in The War of the Worlds, London: William Heinemann, published 1898, book I (The Coming of the Martians), page 150

Then, as she released me, I made it out to her, made it out perhaps only now with full coherency even to myself. “Two hours ago, in the garden”—I could scarce articulate—“Flora saw!”

1898, Henry James, chapter VII, in The Turn of the Screw‎