a. and sb. rare. [f. SUBJECT sb. + -ILE.] Of material: Adapted to receive a subject or picture. b. sb. A material on which a painting or engraving is made.
1859. Gullick & Timbs, Painting, 126. The metal served as a subjectile to the opaque painting. Ibid. The materials, or subjectiles, upon which paintings have been executed.
1881. Oracle, V. 5 Nov., 294. The previous modes of printing in which the ink is contained in incisions or upon reliefs and transferred thence to the paper or other subjectile material by pressure.