Where does “self-treatment” come from?

self-treatment (English) comes from English treatment, from English treat, from Middle English treten, from Old French tretier, from Latin tractāre, from Latin tractō, from Latin -tō, from Latin -tus — Derives action nouns from verb roots.

self-treatment (English): The action of attempting to cure one's own...

Definitions

  1. The action of attempting to cure one's own...

Ancestry of “self-treatment”, step by step

self-treatment traces back through two separate lines of ancestry.

via English treatment

StepLanguageWordMeaning
1EnglishtreatmentThe process or manner of treating someone or...
2EnglishtreatTo negotiate, discuss terms, bargain; To...
3Middle Englishtreten
4Old Frenchtretier
5Latintractāre
6Latintractōto tug, drag or haul
7Latin-tōForms here
8Latin-tusForms the past participle of verbs; Forms...
9Proto-Italic-tus
10Proto-Indo-European-tusDerives action nouns from verb roots

via English Self

StepLanguageWordMeaning
1EnglishSelfHimself, herself, itself, themself, themselves; that specific (person mentioned)
2Middle EnglishsalveAlternative form of sauf
3Old Englishsealfsalve
4Proto-West Germanicsalbusalve, ointment
5Proto-Germanicsalbōsalve, ointment
6Proto-Indo-Europeansolp-éh₂
7Proto-Indo-Europeanselp-fat, oil
Every word from Proto-Indo-European -tusEvery word from Latin -tusEvery word from Latin -tō