former term for the Western Apaches, from Spanish, literally "foolish;" probably a translation of a name given to the people by other branches of the Apache, such as Chiricahua Apache /bini:'édiné/, Mescalero Apache /bini:'édinendé/, both literally "people without minds," and used to designate the Western Apaches. Spanish tonto is said to be originally a nursery word, used for its sound [Buck], but in some sources it is given as perhaps literally "thunderstruck," from Latin attonius, whence also Spanish atonar "to stupefy."