phr. arch. [A prep.1 + HEIGHT. The full on height is equally common.] On high, aloft. (Of position and direction.)

1

1605.  Shaks., Lear, IV. vi. 58. From the dread Somnet of this Chalkie Bourne Looke vp a height.

2

1622.  Rawleigh’s Ghost, 109. The brasen serpent being hanged a height.

3

1813.  Hogg, Queen’s Wake, 160. Lord Darcie’s sword he forced ahight.

4