ofer, over, upon.
oð, until, up to.
ðurh, through.
ymbe, about, around [um-while, ember-days].
(3) The preposition on (rarely in), meaning into, is usually followed by the accusative; but meaning in, on, or during, it takes the dative or instrumental. The preposition wið, meaning toward, may be followed by the genitive, dative, or accusative; but meaning against, and implying motion or hostility, the accusative is more common.
(4) The following phrases are used prepositionally with the dative:
be norðan, north of.
be ēastan, east of.
be sūðan, south of.
be westan, west of.