Á-masian

According to the Old English Dictionary:

á-masian

p. ode To amaze, stupefy, confound:--Þú ámasost þeóda obstupefacies gentes, Cant. Ab. 12. Stent hé heortleás and earh, ámasod and ámarod, mihtleás, áfǽred pavor percutiet stupidis cunctorum corda querelis, Dóm. L. 125: Wlfst. 137, 23. a-masian