Lewis & Short

colluctātĭo (conl-), ōnis, f. [colluctor], a wrestling, struggling, contending with something (post-Aug. prose).

  1. I. Prop.: in colluctatione vel pancratio, Dig. 9, 2, 7; so of the fighting of oxen, Col. 6, 2, 4.
  2. II. Trop., the death struggle, Sen. Q. N. 3, 18, 1.
    Of an embracing in love, App. M. 9, p. 219, 12; Lact. 1, 17.
    Of a difficult utterance: est aliis concursus oris et cum verbis suis colluctatio, Quint. 11, 3, 56.