ETYMOLOGY
from Italian suasivo (suasive, having the power of persuading or urging) + -ious
EXAMPLE
“…Who is most merciful, bountiful, and liberal, and willing to helpe and further you, in your intended loues, burning desires, and high conceites. Plucke vp a good heart, man, come let vs goe on.
With pleasurable actions, maydenly iestures, swasiuious behauiours, girlish sportes, wanton regardes, and with sweet vvords they ledde mee on thither, beeing vvel content vvith euerie present action, but that my Polia vvas not there to the suppliment of my felicitie, and to haue been the sixt person in the making vp of a perfect number. …”
From: Hypnerotomachia: The Strife of Loue in a Dreame
By Francesco Colonna
Translated by Robert Dallington, 1592
Lexicophilia 