1611. Florio, Discodato, vntailed, curtailed.
1648. Hexham, II. Ongestaert, Vntailed, or a Horses taile cutt off as our English horses are.
1807. in Spirit Pub. Jrnls., XI. 79. He acknowledged that the os coccygis in untailed animals was indeed no tail.
1836. Fonblanque, Eng. under 7 Administr. (1837), III. 285. The old story of the untaild foxs quarrel with tails.