What do the following words have in common cleave continuance asperse sanction oversight resign tabled and quiddity?

They are all Words that mean the opposite of themselves.

Example: Cleave means both to adhere to, and to split.

However, at least 'resign' is not homonymically accurate, as the meaning 'to surrender' is pronounced with a z, and resign 'to sign/issue again', is pronounced with an s.

Written, however, they do look the same.