[ad. mod.L. synthetismus, f. Gr. συνθετίζεσθαι to SYNTHETIZE.] A synthetic system or doctrine.

1

1832.  A. Johnson, trans. Tenneman’s Man. Hist. Philos., 463. A new system which he [sc. Krug] denominates a Transcendental Synthetism.

2

1842.  Sir W. Hamilton, Diss., in Reid’s Wks. (1846), 797/2.

3