† coˈmmunialtyObs. [f.med.L. commūniāl-is ‘communis, generalis’ (Du Cange) + -ty.] Community; fellowship. 1647H. More Song of Soul Notes 144/1 The divine communialty of Pythagoras followers.1664― Myst. Iniq. ix. 28 Good men upon Earth are all of one communialty.