1. caries — de Vaan
caries "decaying, rot' [f. e] (Varro+; sg.tantum) Derivatives: caridsus 'decayed, rotten' (Cato+). Pit. *kas- 'to lack, be missing' (caries probably post-Pit). The suffix -ies to derive verbal abstracts is not productive anymore in Latin. The isolated formation caries points to an earlier verb *Aar- or *kas-. Earlier dictionaries have derived cariesfromPIE *krh2- 'to break', as in Skt sfnati 'breaks*, Av. … — [de Vaan, s.v. caries, p. 107]