abjure (v.)
swear to abandon, solemnly reject
KL II.iv.203 [Lear to all] I abjure all roofs
Tem V.i.51 [Prospero alone] this rough magic / I here abjure
TN I.ii.40 [Captain to Viola, of Olivia] she hath abjured the sight / And company of men
TS I.i.33 [Tranio to Lucentio, of studying] Let's [not] ... so devote to Aristotle's checks / As Ovid be an outcast quite abjured