a. and sb. Med. Also 7 stupi-. [ad. L. stupefacient-em, pres. pple. of stupefacĕre: see STUPEFY v.] A. adj. Stupefying, producing stupor. ? Obs.

1

1669.  Rowland, Schroder’s Chym. Disp., I. xxx. 40. Stupefacient, Narcotick.

2

1675.  Grew, Anat. Plants, Lect. VI. i. 280. Stupifacient [is a kind of Taste] as in the Root of Black Hellebore.

3

1748.  Hartley, Observ. Man, I. ii. § 2. 155. Very nauseous and stupefacient Tastes may perhaps arise from violent and irregular Vibrations.

4

1849.  in Craig; 1850 in Ogilvie; and in later Dicts.

5

  B.  sb. A medicine producing stupor. rare–0.

6

1855.  in Ogilvie, Suppl. (and in later Dicts.).

7

1898.  in Syd. Soc. Lex.

8