From side to side of (a surface or space); across, to the other side of (a sea, river, boundary, etc.).

Of position: Over.

From side to side of, across. of position or direction; = athwart, prep. 1b archaic or poetic.

From side to side of, transversely over, across. of position or direction.

Expressing direction: located in a direction forming a cross with, or transverse to. At any angle with; sideways or obliquely against.