health (n.) Old English hælþ"wholeness, a being whole, sound or well," from Proto-Germanic *hailitho, from PIE *kailo-"whole, uninjured, of good omen" (cognates: Old English hal"hale, whole;" Old Norse heill"healthy;" Old English halig, Old Norse helge"holy, sacred;" Old English hælan"to heal"). With Proto-Germanic abstract noun suffix *-itho (see -th (2)). Of physical health in Middle English, but also "prosperity, happiness, welfare; preservation, safety."
art (n.) early 13c., "skill as a result of learning or practice," from Old French art (10c.), from Latin artem (nominative ars) "work of art; practical skill; a business, craft," from PIE*ar-ti- (cognates: Sanskrit rtih"manner, mode;" Greek arti"just,"artios"complete, suitable,"artizein"to prepare;" Latin artus"joint;" Armenian arnam"make;" Germanart"manner, mode"), from root *ar-"fit together, join".
propaganda (n.) ablative fem. gerundive of Latin propagare (see propagation). Hence, "any movement to propagate some practice or ideology" (1790). Modern political sense dates from World War I, not originally pejorative. Meaning "material or information propagated to advance a cause, etc." is from 1929.
positprop (n.) 2014, contraction of propaganda and agitprop, "propaganda in support of positive, well-intentioned social and environmental change".