The word vis does not have singular genitive and dative forms. This makes it difficult to use vis. (I was reminded of this difficulty by this Star Wars question.)
Can you suggest methods of working around the missing forms of vis when writing Latin? What should I do when syntax seems to require genitive or dative? The easiest way would be to use a substitute word for these cases or to coin new forms for vis, but both feel like a disservice to legibility and style. I am open to any suggestions.
For concrete examples, you can consider replacing robur with vis in the following sentences:
- Terror roboris magnus erat apud senatores.
- Haud multum roboris remanet.
- Vir quidam roboris nuclearis peritus acroasem praeparaverat.
- Marcum miseret roboris mei.
- Roboris Marci causa abire constitui.
- Haec potio magica robori meo prodest.
- Caesar non pietati sed robori vivebat.
- Voluntas robori dissimilis est.