W W Gill (Manxscrap books) suggests
Joughin is Mx for " deacon " ; but the Diaconson who held a croft near the Creg Mill, Ballasalla, in 1540 is more likely to have borne the Lancs, name Dicconson or Dicconson. Hugh Dicconson was one of the Earl of Derby's Commissioners in 1561. The Sloane MS. (Acts of Stanley, p. 76) has Mac Joyene, Mac Joychene, in 1422, where Statutes have Caighen. Mac Joghens were numerous in 1513, and the single Dicon then appearing was probably the Eng. name which is now Dickin and Dickens, so translation is unlikely here. There seems to have been give-and-take among these Eng. names, as between the Eng. and Mx forms Dickson, 1429 and 1430, MacDik, Dik and Dicon, 1510, Dycke, 1611, Duckan, 1611. Surviving from these are Duggan and probably the uncommon Gick.

In his quoted old chester names:
Duke, Thos., alias Rogerson, corvisor (shoemaker), 1531. No more until 1700, then numerous. — Mx Juck, 1449, Juick, 1532 ; Jick, Dik and Duke, 1510-13. Juke again, 1681. Extant as Duke and Gick. Also Eng. and Sc. Dyk, Dik, Exchqy. Rolls of Sc., 1492-1500.