Resign doesn’t really belong on this list. It isn’t an antonym of itself. Resign and resign are homographs with opposite(ish) meanings.
For example, clip = to fasten originates from Old English `clyppan` (to embrace/clasp/surround), while clip = to cut originates somewhere Scandanavian, as in Old Norse' `klippa` (to clip/shear). Are those still homographs? I think a fair number of the list items are the result of convergent evolution.
Etymology is relevant to whether two words are cognates.