Prepo*si"tion*al*ly

from The Collaborative International Dictionary of English v.0.48

Prepositional \Prep`o*si"tion*al\, a. [Cf. F.
   pr['e]positionnel.]
   Of or pertaining to a preposition; of the nature of a
   preposition. --Early. -- {Prep`o*si"tion*al*ly}, adv.
   [1913 Webster]