Hát-hirtan

According to the Old English Dictionary:

-hiertan, -hyrtan;

hát-hirtan

p. te To make angry :-- Ðonne is micel þearf ðætte se, se ða hátheortnesse ofercuman wille, ðæt hé hiene ongeán ne háthirte necesse est, ut hi, qui furentes conantur reprimere, nequaquam se in furore erigant, Past. 40, 5; Swt. 296, 6. hat-hirtan