1) An archaic form of ‘more’.
1485 Thise beyng witnesse ... Sir John Vicars, John Wederhyrde ... and other moo, Clotherholme
1541-2 what noumbre of persons did entre into the same howse ... and who they wer mo that did entre with them, Hedon
1550 he had as he belevith ... xiiij younge gese and x yonge duklings and noo moo, Thixendale
1617 4 coache horses one other and 3 moe, Brandsby.