merknight

plural merknights

1. fantasyA merperson knight.

   […] while merknights in full armour give their own demonstration of fishy combat tactics.

   1967, Bridget Ann Henisch, Medieval Armchair Travels, Carnation Press (1967), page 38

   2 more examples

   However, it is the scilla's cousin the "merknight" (Fig. 107) who most closely resembles the curious armored fish men that Bosch portrays.

   1981, Laurinda S. Dixon, Alchemical Imagery in Bosch's Garden of Delights, UMI Research Press, →ISBN, page 44

   It is etched and gilded overall, the themes of the decoration including, on the leg defences, the labours of Hercules, and on the upper half a merknight and mermaid, supplemented with elephants and castles, and various putti and animals.

   2009, Graeme Rimer, Thom Richardson, J.P.D. Cooper, editors, Henry VIII: Arms and the Man, 1509-2009, Royal Armouries, →ISBN, page 151