Un-hlidian

According to the Old English Dictionary:

un-hlidian

p. ode To uncover, to remove the lid or covering from something :-- Féng se portgeréfa tóö ðære tége and hé hí unhlidode, Homl. Skt. i. 23, 765. Seó byrgen wæs open geworden and unhlidod, Wulfst. 214, 19. un-hlidian