Definition of "developement"

Gentlemen, the complete developement of this business, however, now approached.

1814, William Brodie Gurney, The Trial of Charles Random de Berenger, Sir Thomas Cochrane,‎

When I mingled with other families, I distinctly discerned how peculiarly fortunate my lot was, and gratitude assisted the developement of filial love.

1831 October 31, Mary W[ollstonecraft] Shelley, chapter II, in Frankenstein: Or, The Modern Prometheus (Standard Novels; IX), 3rd edition, London: Henry Colburn and Richard Bentley, […], page 24

"Pray, Mr. Truck," inquired S. R. P., "is it commonly thought in the English literary circles, that Byron was a developement of Shakspeare, or Shakspeare a shadowing forth of Byron?"

1838, [James Fenimore Cooper], chapter VI, in Home as Found. […], volume I, Philadelphia, Pa.: [Isaac] Lea & Blanchard, successors to [Henry Charles] Carey & Co., page 107

At the close of the second act, the Viennese Dancers tripped upon the stage—These, as you know, are twenty or thirty children, apparently from five years old to to ten, who dress and dance like full-grown dancing girls and produce astonishing effects by their well drilled combinations—They are curiosities, if it were only for the robust developement of their little bodies.

1845 July 3, N[athaniel] P[arker] Willis, “From the New York Mirror. Willis’s Letters from London. […]”, in Rutland Herald, volume 51, number 33, Rutland, Vt., published 14 August 1845, front page, column 2