[1] : The Collaborative International Dictionary of English v.0.48

tanist \tan"ist\, n. ir. tanaiste, tanaise, second, the second
   person in rank, the presumptive or apparent heir to a
   prince.
   in ireland, a lord or proprietor of a tract of land or of a
   castle, elected by a family, under the system of tanistry.
   1913 webster

         this family the o'hanlons were tanists of a large
         territory within the present county of armagh. --m. a.
                                                  lower.
   1913 webster

Tanist >> T Words
Tanist, definition of term: Tanist
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