furtyvely

From *furtyve +‎ -ly, from Middle French furtif, from Latin fūrtīvus.

furtyvely

1. (hapax) furtively
   • 1490, William Caxton, transl., edited by M[athew] T[ewart] Culley and F[rederick] J[ames] Furnivall, Caxton’s Eneydos, 1490, Englisht from the French Liure des Eneydes, 1483, London: Published for the Early English Text Society by N. Trübner & Co., […] , published 1890, pages 45, 69, and 110:

     And more, there is the Region of thire, wherfrom we haue wythdrawen and brought furtyuely ałł this people that we haue […] Certes, quene, I answere not, but that thou haste deserued of me moche more of goodes than I can nombre, or by som wyse thynke ne telle; and so shałł I remembre elysse as longe as lyffe shałł presumed to abyde wythin me / and by cause that thou hast spoken first, I wyłł tełłe & shewe vnto the that I wold not haue departed furtyuely out of thy land, vnknowen to the, but sholde haue sygnyfied it vnto the […] She taketh from them the puyssaunce that they hadde fyrste, and hath awaye fro theym furtyuely, by proces of tyme, ałł theyr strengthes, one after another, by cause noon shalle be aware of her, for doubte that she be not deceyued.

     (please add an English translation of this quotation)

• English: furtively