eirisearc
Definitions (by source)
heresiarch, 3800. [Cf. an dá heresiarca-sa, SSA, 562 (= 530) ; npl. eiriasiarca (sic), 554 (=522).]
Desiderius, otherwise called Sgáthán an Chrábhaidh. Editor: Thomas F. O’Rahilly.
Desiderius, otherwise called Sgáthán an Chrábhaidh. Editor: Thomas F. O’Rahilly.