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First recorded in 1815–25; alteration of obsolete litho(n)triptor “instrument for crushing kidney stones,” derivative of litho(n)triptic “crushing kidney stones,” from New Latin lithontripticus, ultimately based on the Greek phrase (phármaka tôn en nephroîs) líthōn �ٳ�����پ���á “(drugs) breaking up stones (in the kidneys)”; �ٳ�����پ���á “crushing,” a derivative of �ٳ��ý��ٱ𾱲� “to crush”; trip- by association with Greek �ٰ�ī́���𾱲� “to rub, knead, pound” (verbal adjective �ٰ�ī���ó�� )