Note 11 — LECTURE II. The Buddha as a personal Teacher.
Reading edition
Tapas is a Sanskṛit word, derived from the root tap, ‘to burn, torment.’ It is connected with Lat. tepeo, Greek Θάπτω, which last originally denoted ‘to burn,’ not ‘to bury’ dead bodies. Tapas ought not to be translated by ‘penance,’ unless that word is restricted to the sense poena, ‘pain.’