Etymology
From French pamplemousse and Dutch pompelmoes, probably from pompel (“thick”) or pompoen (“pumpkin”), from French pompon (“pumpkin; melon”), and from Portuguese limões (“lemons”). Continuing use in South Africa supported by Afrikaans pompelmoes and pampelmoes. Possibly originally transcribing Tamil பம்ப ளிமாசு (pampa ḷimācu, “big citrus”).