1) A bed on castors or wheels, low enough to go under a stand-bed, much the same as a truckle-bed.
1542 A bedsted with a tryndle bed geoned within the same, Bretton
1564 j standing bed j tryndle bed, Clint
1622 one stand bed & 3 trundlebeddes xiijs iiijd, Pudsey
1669 a standing bedstead with the bedding, a trundle bed, Elmswell.