Ofer-steall

According to the Old English Dictionary:

es;

ofer-steall

m. Opposition:-- Gif ic ðísum dracan to forswelgenne geseald eom hwí sceal ic elcunge þrowian for eówerum oferstealle (the opposition which was offered by the prayers said at the speaker's bedside), Homl. Th. i. 534, 20. Cf. wiðer-steall. ofer-steall