The Collaborative International Dictionary of English v.0.48:
Soyle \Soyle\, v. t. [Aphetic form of assoil.] To solve, to clear up; as, to soyl all other texts. [Obs.] --Tyndate. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Soyle \Soyle\, n. [Cf. Soil to feed.] Prey. [Obs.] --Spenser. [1913 Webster]