Lewis & Short

māchĭnārĭus, a, um, adj. [machina], of or belonging to machines, machine- (postclass.).

  1. I. Adj.: mola, which is worked by an animal by means of a machine, App. M. 7, p. 194, 20: asinus, Dig. 33, 7, 12: mensor, a surveyor, ib. 11, 6, 7: commentator, a machinist, machine-builder, Sol. 5.
  2. II. Subst.: māchĭnārĭus, ii, m., one who works on a scaffold, Dig. 9, 2, 31.