Greek "Pathos" means "disease" or "suffering". In that sense "Psychopath" means "a person with an antisocial personality disorder". Originating from the same root "Osteopath" means "A therapist who manipulates the skeleton and muscles". Shouldn't it mean "Suffering of Skeleton and muscle"? And, Shouldn't "A therapist who manipulates the skeleton and muscles" be represented by "Osteopathologist"?
Greek "Logos" means "Science". Biology = "Study of living beings". Zoology= "Study of animals". Then why "Study of plants" is represented by "Botany". It should be "Botanology". Isn't it?
So, what are the explanations about the two words (1) Osteopath and (2) Botany?