poitrine

chest, thorax, torso; breast, bosom; breast (of poultry, as meat)

“bomber la poitrine” — to puff up one's chest

Inherited from Old French poitrine, peitrine, from Vulgar Latin *pectorīna, derived from Latin pectus. Gradually replaced pis, now meaning udder. Cognate with Spanish pretina (“waistband”).

first-person singular indicative/present of poitriner; first-person singular subjunctive present of poitriner; second-person singular imperative of poitriner; third-person singular indicative present of poitriner; third-person singular subjunctive present of poitriner

See the etymology of the corresponding lemma form.