Lewis & Short

ūnĭter, adv. [unus], into one, together in one, conjointly, = in unum (Lucretian): cum corporis atque animaï Discidium fuerit, quibus e sumus uniter apti, Lucr. 3, 839; 3, 846; 5, 555; 5, 558: cedere, Schol. Juv. 3, 298.