In-stæppan

According to the Old English Dictionary:

in-stæppan

p. te To step, in, enter :-- Ic ne instæppe oððe ingá oððe ic ne fare non introibo, Ps. Lamb. 25, 4. Insteppaþ oððe ingáþ on gesihþe his introite in conspectu ejus, 99, 2. On unscyldignysse mínre instæppende ic eom in innocentia mea ingressus sum, 25, 11. Hí sume gesáwon englas instæppende some of them saw angels entering, Homl. Th. ii. 546, 23. in-stæppan