pis

udder

Inherited from Old French piz, peiz (“chest, udder”), inherited from Latin pectus, from Proto-Italic *pektos, ultimately from Proto-Indo-European *peg- (“breast”). The word underwent a semantic shift beginning in Old French and was gradually replaced by poitrine in the sense of “chest”.

and, besides

“Je suis habituée, protesta-t-elle. Pis j'ai pas besoin d'un père pour me faire la morale.” — ‘I'm used to it,’ she protested. ‘And I don't need a father to lecture me.’

Syncope of puis. Cognate to (if not taken from) dialectal forms such as Picard pis (“and”).