Source : Webster's Revised Unabridged Dictionary (1913)

Ultima \Ul"ti*ma\, a. [L., fem. ultimus last.]
   Most remote; furthest; final; last.

   {Ultima ratio} [L.], the last reason or argument; the last
      resort.

   {Ultima Thule}. [L.] See {Thule}.

Ultima \Ul"ti*ma\, n. [L., fem. of ultimus last.] (Gram. &
   Pros.)
   The last syllable of a word.