Allen and Greenough's New Latin Grammar for Schools and Colleges
J. B. Greenough, G. L. Kittredge, A. A. Howard, Benj. L. D'Ooge, Ed.

[*] a. The genitive sometimes follows potior, get possession of; as always in the phrase potīrī rērum, to be master of affairs:—

illīus rēgnī potīrī; (Fam. 1.7.5), to become master of that kingdom.
1. “Cleanthēs sōlem dominārī et rērum potīrī putat ” (Acad. 2.126) , Cleanthes thinks the sun holds sway and is lord of the universe.

[*] Note.--But potior usually takes the ablative (see § 410).

[*] b. Some other verbs rarely take the genitive—

By analogy with those mentioned in § 354:—
1. “neque hûius sīs veritus fēminaeprīmāriae ” (Ter. Ph. 971) , and you had no respect for this high-born lady.
As akin to adjectives which take the genitive:—
1. fastīdit meī (Plaut. Aul. 245), he disdains me. [Cf. fastīdiōsus.]
studet tuī (quoted N. D. 3.72), he is zealous for you. [Cf. studiōsus.]
In imitation of the Greek:—
1. “iūstitiaene prius mīrer, bellīne labōrum” (Aen. 11.126) , shall I rather admire his justice or his toils in war?
2. “neque ille sēpositīciceris nec longae invīdit avēnae” (Hor. S. 2.6.84) , nor did he grudge his garnered peas, etc. [But cf. invidus, parcus.]
3. “labōrum dēcipitur ” (Hor. Od. 2.13.38) , he is beguiled of his woes.
4. “mēlabōrum levās ” (Pl. Rud. 247) , you relieve me of my troubles.