Asperous

[T]here needeth onely an unfolding and deplication of the inſide of this order, to ſhevv, it is not ſo aſperous and thorny as our Nature apprehendeth it by the firſt glances that light upon it.

And as their valour, so you trow, defied / on aspe'rous voyage cruel harm and sore, / so many changing skies their manhood tried, / such climes where storm-winds blow and billows roar; […]