v., n., adj., & adv.
--v.tr.
1. deprive (a person) of sight by covering the eyes, esp. with a tied cloth.
2 deprive of understanding; hoodwink.
--n.
1. a bandage or cloth used to blindfold.
2 any obstruction to understanding.
--adj. & adv.
1. with eyes bandaged.
2 without care or circumspection (went into it blindfold).
3 Chess without sight of board and men.
Etymology: replacing (by assoc. with FOLD(1)) ME blindfellen, past part. blindfelled (FELL(1)) strike blind