Literally meaning: “suffering of muscles”
Origin: Anc Greek
μυο-/myo-(=comping form meaning muscle) > μυς/mys/ (=muscle) > μύω/myo(=enclosed like the muscle inside body or rat in its nest=epimys)
+–πάθεια/patheia (-pathy, suffix denoting “suffering”) > πάθος( masculine gender) / pathos (=passion, sorrow, strong emotion) πάσχω/pascho(=to be affected by, to suffer).
Any of various abnormal conditions of the muscular tissues, especially one involving skeletal muscle which is characterized by muscle weakness and wasting.