Lewis & Short

pellācĭa, ae, f. [pellax], an allurement, enticement, blandishment.

  1. I. In gen. (poet. and very rare; in Verg. G. 4, 443, fallacia is the correct read.; v. Wagner ad loc.): placidi pellacia ponti, Lucr. 5, 1004.
  2. II. In partic., seduction (post-class.): Jovialis monumentum pellaciae, Arn. 5, 171; 4, 147.