Where does “heliotherapy” come from?

heliotherapy (English) comes from English helio, from English heliotrope, from French héliotrope, from Latin heliotropium, from Ancient Greek ἡλιοτρόπιον, from Ancient Greek Ἥλιος, from Ancient Greek τύπος, from Ancient Greek τύπτω — to push, to hit.

heliotherapy (English): Any medical therapy by exposure to light

Definitions

  1. Any medical therapy by exposure to light

Ancestry of “heliotherapy”, step by step

heliotherapy traces back through two separate lines of ancestry.

via English helio

StepLanguageWordMeaning
1EnglishhelioA heliotrope
2EnglishheliotropeA plant that turns so that it faces the sun; A...
3Frenchhéliotropeheliotrope
4Latinheliotropiumheliotrope
5Ancient Greekἡλιοτρόπιονheliotrope; sundial, solar clock; bloodstone, a...
6Ancient GreekἭλιοςsun
7Ancient GreekτύποςA blow, pressing; The results of a blow: mark,...
8Ancient Greekτύπτωto beat, strike, smite; to beat, strike oneself
9Proto-Indo-European(s)tewp-to push, to stick
10Proto-Indo-European(s)tew-to push, to hit

via English therapy

StepLanguageWordMeaning
1EnglishtherapyAttempted remediation of a health problem...
2New Latintherapīa
3Ancient Greekθεραπείαa waiting on service; medical treatment
4Ancient Greekθεραπεύωto wait on, attend, serve; to obey; to flatter,...
5Ancient Greek-εύωAdded to the stems of agent or other nouns in...
6Ancient Greek-εύςAdded to noun or adjective stems to form a...
Every word from Proto-Indo-European (s)tew-Every word from Proto-Indo-European (s)tewp-Every word from Ancient Greek τύπτω