Þurh-sleán. i

According to the Old English Dictionary:

þurh-sleán. I

add: to strike and pierce, wound; percutere :-- Wearð hé mid þæs ealdan feóndes yfelnysse þurhslagen (percussus), Gr. D. 117, 7. Þurhslægene (percussi) mid þǽre ádle þæs mycclan líces, 207, 16. þurh-slean