Late Middle English; earliest use found in The Wycliffite Bible (early version). From post-classical Latin adiuramentum prayer, entreaty (Vulgate), exorcism from classical Latin adiūrāre + -mentum. Compare Middle French adjurement exorcism.
Definition of adjurement in US English:
adjurement
noun
Adjuration.
Origin
Late Middle English; earliest use found in The Wycliffite Bible (early version). From post-classical Latin adiuramentum prayer, entreaty (Vulgate), exorcism from classical Latin adiūrāre + -mentum. Compare Middle French adjurement exorcism.