render incapable

Toward women whom age and infirmities render incapable of work.

But such of them as have met with temporary failure, if they are able to assure themselves that their lack of success has been due neither to a failure of will-power nor a fear of ridicule, will return to the charge, once more prepared to make headway against circumstances which they have the poise to foresee, and which they will at least render incapable of harming them, even if they lack the necessary force to dominate them completely to their own advantage.