1410–12 Accts. & Inventories J. Starlyng in (1914) 4 168/2 vij Regoldes.
1416–20 Acct. in (1954) 40 66 332 rygall.
1584 in J. Barmby (1888) 18 A weather, a rigolde, and a lame.
1588 (Somerset Ho.) Itm liiijor weythers; tuppe and regalds.
1596 Fairfax Inventory in (1884) 48 151 Item Tupp lambes... Item Rigald lambes.
1615 H. Crooke 244 Many creatures haue their Testicles within tyed to their backs,..as some Tuppes or Rammes called Riggall Tuppes.
1617 F. Moryson iii. 115 The stones of Rammes and Regles (vulgarly Granella) are esteemed great dainties, especially in Tuscany.
1691 J. Ray N. Country Words in J. Ray (ed. 2) A Riggilt, a Ram with one Stone.
1703 R. Thoresby Let. 27 Apr. in J. Ray (1848) 426 Riggald, abusively, applied to men as well as to cattle.
1788 W. Marshall Provincialisms E. Yorks. in II. 348 Riggil, ridgil.
1819 A. Rees XXXIV. at Stones of Animals The organs of generation..should be quite in a complete state of production, and not in the rigald condition.
1830 N. Scatcherd 199 Of the same species with the forementioned is the ludicrous appellation ‘Riggald’ or as it should be spelt, Righold, which is ‘ubi testiculus unus in dorso retinetur’.
1962 H. Orton & W. J. Halliday I. i. 250 What do you call a male horse when only half castrated?.. [Northumberland, Cumberland, Durham, Lancashire] Riggold.