therapy (English)

Where does "therapy" come from?

The word 'therapy' traces back to the Ancient Greek 'therapeía,' which originally meant 'service' or 'attending.' This term descended from 'therápōn,' referring to an attendant or aide, highlighting the idea that healing was an act of serving or caring for another. It eventually entered modern English through New Latin, evolving into our contemporary term for medical treatment and mental health support.

Full etymology tree

• therapy (English), 'Attempted remediation of a health problem following a diagnosis, usually synonymous with treatment.'
  • inherited therapīa (Latin), 'therapy'
    • inherited θεραπεία (therapeía) (Ancient Greek), 'a waiting on service'
      • derived θεραπεύω (therapeúō) (Ancient Greek), 'to wait on, attend, serve'
        • derived θεράπων (therắpōn) (Ancient Greek), 'companion of lower rank, comrade, attendant, aide'
          • inherited Pre-Greek root (Pre-Greek)
        • suffix -εύω (-eúō) (Ancient Greek), 'Added to the stems of agent or other nouns in -εύς (-eús) to form a denominative verb of condition or activity: meaning "be x" or "do what x typically does"'
      • suffix -ία (-ía) (Ancient Greek), 'Added to stems of adjectives, rarely to the stems of verbs, and even more rarely to the stems of nouns, to form feminine abstract nouns'

Direct ancestors

• therapia (Latin)
• θεραπεία (Ancient Greek)
• -ία (Ancient Greek)

Updated July 2026

Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris