What is the meaning of Extremus?

superlative degree of exter

1. farthest, outermost, extreme
2. coming at the end, last, final, ultimate
3. extreme in degree, intense
4. the end, edge or tip of something:

   1. farthest, outermost, extreme

      coming at the end, last, final, ultimate

      extreme in degree, intense

      the end, edge or tip of something:

      1. rear

         end

         Source: wiktionary.org