in early Ireland, the elected heir of a living Celtic chief in a system limiting the choice to the chief's kin
Origin of tanistIrish and Gaelic t?naiste, next heir, hence lord of a country, literally , second, parallel from Old Irish t?n, estate
The heir apparent to an ancient Celtic chief, elected during the chief's lifetime.
Origin of tanistIrish Gaelic tánaiste second, tanist from Old Irish tánaise ; see sed- in Indo-European roots.
- The heir presumptive to a Celtic clan.
From Irish tÃ¡naiste (“second-in-command").