homeopathy

the term is a modern scientific coinage from the 19th century, constructed from ancient greek components to precisely convey its foundational principle. the first element, homeo-, derives from homoios (like, similar), establishing the core concept of 'similarity'. the second element, -pathy, originates from pathos (suffering, disease), indicating the condition to be treated. thus, the word's literal construction, 'similar suffering', logically encapsulates the law of similars—the doctrine that a substance causing symptoms in a healthy person can cure similar symptoms in a sick person. this neologism elegantly packaged a complex medical theory into a single, descriptively accurate term borrowed directly from the classical language of science.

Structure: homeo (similar) + pathy (suffering/disease) homeo (from greek homoios, meaning 'like, similar'); pathy (from greek pathos, meaning 'suffering, feeling, disease').