c. 1380. Wyclif, Wks. (1880), 67. God wole not and may not brynge vnable men in-to benefices of þe chirche for his riȝtwysnesse & vnablete of hem self.
c. 1400. trans. Secreta Secret., Gov. Lordsh., 67. He may falle yn-to syknes, ffebylnes, and ynto oþer vnabiltez.
1425. Rolls of Parlt., IV. 267/2. Ye grete unabilte and unsuffisante, that the same Wauter felte in hymself, to touche thing yat was so chier.