Lewis & Short

ūnĭ-jŭgus, a, um, adj. [unus-jugum]. having one yoke: vinea, fastened to a single yoke or cross-beam.

  1. I. Lit., Plin. 17, 22. 35, § 183.
  2. * II. Transf., that has been married only once: Joseph, Tert. Monog. 6 fin.