It is phonetically possible to connect this base type – a typical Alpine word – to Latin popīna 'cookshop' and to assume the metonymic derivation 'food from the cookshop' (cf. Georges under popīna). REW declares this approach to be "entirely impossible conceptually" (under pūpa) and proposes a pre-Roman origin instead vor. This idea is broadly accepted (cf. HWdR, 624 and EWD 5, 417).