tanistry
/ˈtænɪstri/
noun
- A historical system of succession in which a leader is chosen from among eligible male relatives, rather than passing directly from father to son.
- Tanistry was practiced in ancient Ireland and Scotland to select clan chiefs.
- Historians study tanistry to understand how power was transferred in early Celtic societies.
- Under tanistry, the successor was often the most capable adult male in the extended family.