During the whole time of his abode in the university he generally spent thirteen hours of the day in study; by which assiduity besides an exact dispatch of the whole course of philosophy, he read over in a manner all classic authors that are extant […]

Thus the gradation of the direct object provides an explanation for the unattestability of [ +derived / -specific ] direct objects in the language.

Here the scribe has dropped the με from καθημενος, thereby creating the nonsense word καθηνος.

I had to disentangle him from his own shoelaces.