Lewis & Short

ăbortīvus, a, um, adj. [abortio], pertaining to a premature delivery.

  1. I. Adj.
    1. A. Born prematurely = abortus: Sisyphus, * Hor. S. 1, 3, 46; cf. Juv. 2, 32: ovum, addled, Mart. 6, 93.
    2. B. That causes abortion: malvae, Plin. 20, 21, 84, § 226; so id. 24, 5, 11, § 18: sternuisse a coitu abortivum, id. 7, 6, 5, § 42.
  2. II. Subst.: ăbortīvum, i, n.
    1. A. An abortion, Plin. 18, 17, 44, § 150; Vulg. 1 Cor. 15, 8 al.
    2. B. (Sc. medicamentum.) A means of procuring abortion = abiga, Juv. 6, 368.