c1400 (Harl. 490) (1929) 435 Rygbane [v.rr. rugbon; bac-bon; glossing eschine].
c1425 tr. J. Arderne (Sloane 6) (1910) 34 (MED) Oft-tymes suche maner sikenes bene toward þe rigbone of þe bak niȝ þe lure.
c1440 (a1400) (Thornton) (1965) l. 497 (MED) Þe knyght agayne to þe bare es gane, And cleued hym by þe rygge bane.
c1450 (?c1425) St. Mary of Oignies ii. xiii, in (1885) 8 183 (MED) She was founden so smalle and lene þurgh infirmite & fastynges, þat þe rigge-bone of hir bak was clungen to hir wombe.
?c1475 (BL Add. 15562) f. 104v A Rigbane, spondile.
1488 (c1478) Hary (Adv.) (1968–9) ii. 44 His ryg bayne he all in sondyr draif.
a1500 (?c1400) (1880) l. 736 (MED) His shulder smot he quyt asundur, rent out the rigbon, it was no wondur.
1539 Job xl. f. cxxiij His shynnes are lyke pypes of brasse, hys rygge bones are lyke staues of yron.
a1586 King Hart l. 536 in W. A. Craigie (1919) I. 271 Ane felloun rout he layde on his rig bone.
1608 in D. Masson (1887) 1st Ser. VIII. 178 [They gave him a stroke on his back wherewith they] clave his rig bone.
1722 W. Hamilton ii. i. 22 He clave his Rig-bone, and he ne'er spake mair.
1828 W. Carr (ed. 2) Rig-Baan, the back bone.
1894 P. H. Hunter 183 It was men like me wha were the rig-bane o' the Leeberal pairty.
1928 A. E. Pease 104/2 He wez lāăm iv his baack wi' t'rheumaticks till they teeak a yat airn an' fired him t'lang lenth ov his rigg beean.
1988 W. Neill 40 Ye grew that prood yit rigbane wadna bend.
2000 M. Fitt xiv. 112 She blenked an crossed quickly tae the lifts, her rigbane awready sair fae the muckle responsibilities Craw had juist laid on her sma bruckle shooders.