Taoiseach
/ˈtiːʃəx/noun
The head of government of Ireland.
Did you know?Taoiseach comes from an Old Irish word for a chieftain or leader, ultimately tied to a root meaning “first” or “chief,” showing how political authority was encoded in language long before modern government.
Etymological Timeline
Proto-Celtic
PCelt
*towissākos
“a leader or chief”
Old Irish
OI
túath
“people, tribe, territory”
Old Irish
OI
tóisech
“chief, leader; first in rank”
Modern Irish
Gaelic
taoiseach
“chief, leader; specifically the head of government”
Modern English
English
Taoiseach
“the prime minister of Ireland”