Miltonic inversion is the term used to describe Milton's tendency to reverse the natural order of words and phrases in his poetry.
There are two examples in the lines, Ten paces huge/He back recoiled. (Paradise Lost vi. 193/4).
Keats also used this device but was apparently not completely happy with it. Writing in a letter to his friend John Hamilton Reynolds about his unfinished work Hyperion, he said, 'I have given up Hyperion - there were too many Miltonic inversions in it'.
There are two examples of inversion in the following line from Hyperion (Book 1: 108), 'Of influence benign on planets pale'.