cathaoir
Definitions (by source)
a chair, a seat. cathaoir an reachta ríogh, the seat of kingly rule, 726
Poems on the O'Reillys. Editor: James Carney.
f., chair, seat, 6792; gen. –reach, 6799
Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Editor: Osborn Bergin.