umbeset
To block, obstruct; act detrimentally toward.
archaic
The Lord Gordon ships with some friends. Monro umbesets his way; yet he escapes, ignorant of Monro's devyse.
To overwhelm; cover completely.
archaic
The Opponents Umbeset with Trickery.
Where it comes from
From Middle English umbesetten (“to surround”), from Old English ymbsettan (“to set around, surround, beset, encompass”), from Proto-West Germanic *umbisattjan (“to set around, encompass”); equivalent to um- + beset or umbe- + set. Compare also Old English ymbsittan (“to sit around, surround”), Dutch omzetten (“to convert, transpose”), German umsetzen (“to move to another place, convert, transform, transplant, adjust, rearrange”).
Adapted from the Wiktionary entry umbeset (CC BY-SA 4.0).