a. (sb.) [SUPER- 4 a.] More than superlative; of the very highest quality or degree. Also sb., a degree beyond the superlative.
1607. R. C[arew], trans. Estiennes World of Wonders, 65. Supersuperlatiue knauery.
1642. Vicars, God in Mount (1644), 11. The Archbishops super-superlative power.
16589. in Burtons Diary (1828), IV. 198. Union is most desirable with brethren Protestants; nay, Protestants of the best profession in the world. This is super-superlative.
1767. S. Paterson, Another Trav., I. 422. His highest tasteThat super-superlative gout.
1801. Southey, Lett. to J. Rickman, 20 Nov. We must create a super-superlative to reach the idea of his magnitude.
Hence Super-superlatively adv.
1641. Smectymnuus, Vind. Answ., Pref. A 4 b. Men so transcendently perfidious, and so supersuperlatively unfaithfull.
1648. E. Simmons, in T. Wodenote, Herm. Theol., Pref. A ix b. The malitious Jews were not so super-superlatively vile as to consult his [sc. Christs] death because he was content in their stead to be accounted as a sinner.