θεραπεία
therapeía
“attendance, cure”
5 words in English grow from this root.
Cryotherapy
Medicineκρύοςkrýos
“healing by cold”
Hydrotherapy
Medicineὕδωρhýdōr
“water cure”
Physiotherapy
Sportφύσιςphýsis
“treatment by natural means”
Psychotherapy
Mindψυχήpsykhḗ
“attendance on the soul”
Therapy
Medicineθεραπείαtherapeía
“attentive care”