[ ˌɪdɪ'ɒpəθi ]
■ noun ( plural idiopathies ) Medicine a disease or condition which arises spontaneously or for which the cause is unknown.
Derivatives
idiopathic adjective
Origin
C17: from mod. L. idiopathia , from Gk idiopatheia , from idios 'own' + -patheia 'suffering'.