a. [ L. erroneus, fr. errare to err. See Err. ]
Stopped much of the erroneous light, which otherwise would have disturbed the vision. Sir I. Newman. [ 1913 Webster ]
An erroneous conscience commands us to do what we ought to omit. Jer. Taylor. [ 1913 Webster ]
n. inadvertent incorrectness.
a. [ L. ultroneus, from ultro to the further side, on his part, of one's own accord. See Ultra-. ] Spontaneous; voluntary. [ Obs. ] Jer. Taylor. --