Expressions (phrases, clauses, etc.), Ichidan verb
to yield oneself (to something); to devote oneself (to something); to surrender oneself (to something)
大学生の時、有理子が愛欲に身を委ねた。When she was at university, Yuriko abandoned herself to sexual passion.
Also written 身をゆだねる【みをゆだねる】