>would a word that has a contrary meaning in a restricted context, also be elgible for contranym status?

In more modern language every measure is called a sanction which is intended to further the observation of the law by subjects, whether the reward to whomsoever fulfills it, or the penalty or chastisement inflicted or at least threatened for nonfulfilment, whether it relates to presciptive laws which require something to be done, or to prohibitive laws which require that something be omitted. These sanctions in turn may result from the very nature of the law, which are internal sanctions like those of the natural law, or they may be added by a positive act of the lagislator, and these are external sanctions. Hence sanction is called moral, psychological, legal, or penal, according to the origin or the nature of it.
[Catholic Encyclopedia]

I'd venture to say that we laypeople ought to steer clear of this contranym, for fear of our everlasting souls! <g>