1) A portable breviary, that is the book which in the Roman Catholic church contained the ‘Divine Office’ for each day, and had to be ready to hand for those in orders.
1439 ‘one portiforium Anglice a portus’, Southowram
1454 I witt Robert my son the old Portos, Bossall
1459 a Graile, a Manuell, a litel Portose the which ... Sir Thomas toke with hym always when he rode, Wiverton
1497 an old portous noited, price xvjs, Wakefield
1520 a printyd portews by the gyft of Mr Rawson, Mount Grace
1541 I bequith to the new chapel one greate portesse, Fewston
1557 to Wathe churche a Almere, a vestement and a portys. It was meant to be carried from place to place, which may explain the following: 1454 my Portatyve which I say opon my selfe, Bossall.