v. Obs. rare. [f. legal L. superonerāt-, pa. ppl. stem of superonerāre (Bracton), f. super- SUPER- 9 b + onerāre to ONERATE.] trans. To overload; to burden excessively. So † Superoneration [ad. legal L. superonerātio], overloading.
1607. Cowell, Interpr., s.v. Commissarie, The Bishop doeth by superonerating their circuit with a commissarie wrong the poorer sort of subjects.
1638. Rawley, trans. Bacons Life & Death (1650), 64. Aire begets new Aire out of watry moisture, yet notwithstanding the old Aire still remains; whence commeth that Super-Oneration of the Aire.
1671. R. Bohun, Wind, 14. It must needs crowd and superonerate the former Spaces. Ibid., 16. By the Repletion, or Superoneration of the Atmosphere.