{{m|la|adesurio}} and {{m|la|abligurrio}}

Yes, I'm treating them as separate suffixes, and also -titō. For haesitō, you can think of it this way: Since the supine of haereō is haesum, and we know the ending of the supine is -tum, you can reason that a hypothetical ending -t- alone would give haes- (i.e. removing -um from -tum gives -t-). If you then extend that ending to -titō, it follows that the result must be haesitō. Thus, the first -t- of the ending is "hidden" inside the -s- of the supine. But this doesn't work for agō, because we know that the supine is actum and therefore the endings -tō and -titō would give *actō and *actitō respectively. So the only option is to treat -itō as a separate suffix.