STUPEFY

[stu.pe.fy] vt -fied ; -fy.ing [ME stupifien, fr. MF stupefier, modif. of L stupefacere, fr. stupere to be astonished + facere to make, do--more at do] (15c) 1: to make stupid, groggy, or insensible

2: astonish, astound -- stu.pe.fy.ing.ly adv