Note 1 — IX. The Emotions
H. W. (Henry William) Auden translation
The evidence of inscriptions and the best MSS. seems to point to the derivation of paenitet, not from poena (cf. punire, impunis), but from the root contained in penes, penetrare, penitus; its original meaning would thus be, "to be touched, affected within, at heart" (Bréal).