quantus-vīs, tăvis, tumvis, adj.,
I as much as you will , as great as you please , however great , ever so great (class.): et manus una regit quantovis impete euntem (navem), Lucr. 4, 903; 4, 1171: quantasvis magnas copias sustineri posse, Caes. B. G. 5, 28: portum satis amplum quantaevis classi, for any fleet , be it ever so large , Liv. 26, 42: cum faciem videas, videtur esse quantivis pretii, Ter. And. 856: ingenium hominis, Gell. 4, 1, 2.— Neutr. subst. : quantum-vīs , however great an amount , as much as you will , how much soever , ever so much : meretrici des quantumvis, nusquam apparet, Plaut. Truc. 2, 7, 17: quantumvis tolle, Hor. Ep. 1, 7, 16.—With gen.: quantumvis fiduciae et spiritūs capias, how much soever , Nazar. Pan. Const. 19. — Adverb., very , very indeed : quantumvis facundus et promptus, Suet. Calig. 53.—
2 For quamvis, although , albeit : ille catus, quantumvis rusticus, Hor. Ep. 2, 2, 39 (ap. Cic. Lael. 20, 73, and Sen. Ep. 85, 12, the true read. is quamvis).