mass1, mast noun bacon, flesh, meat 19-20. etymology: Romany; origin obscure; also attested by Galloway Tinkler-Gypsies; form mast attested by Perthshire and Argyleshire Tinkler-Gypsies; also collected by Simson (1865) and attested by seven of his informants; also collected by Joseph F G S Lucas and Rev John Baird from Kirk Yetholm Gypsies note:

Grellmann (1787) collected the form Mas, Masz meaning ‘flesh’ from Continental gipsies. Smart & Crofton (1875) collected the forms mas, moóshkeno-más and groóvenesko-más with the same meaning from English Gypsies.

mass2 noun the hand 19. etymology: origin obscure; this meaning only collected by Simson (1865) but it could possibly be an a development from mass1