A-stælan
Bosworth & Toller Anglo-Saxon Old English Dictionary - a-stælan
According to the Old English Dictionary:
a, stælan to steal
- a-stælan
- To steal out, to seduce; obrepere :-- Ðæt me nǽfre deófol on astelan ne mǽge that the devil may never secretly creep on me [seduce me], L. De. Cf. 9; Wilk. 88, 49.