interrex
nounEtymology From Latin inter- (“between”) + rex (“king”).
1
History, Human sciences, Sciences An official in Ancient Rome who acted as single head of state during the interregnum between two consulates.
2
History, Human sciences, Sciences An equivalent regent from the death of a Polish king till the election and enthronement of his successor.
3
Figuratively A similar interim ruler, CEO, etc.
- Related terms
- interregnum, rex sacrorum