a. 1751. Bolingbroke, Study Hist., ii. (1752), I. 41. The events … appear to us very often … single, and un-relative, if I may use such an expression for want of a better in English.
1757. Chesterf., Lett. (1774), II. 371. A propos, (an expression which is commonly used to introduce whatever is unrelative to it).
1776. Burney, Hist. Mus., I. 62. If the mutations were too sudden and unrelative.
1819. Busby, Hist. Music, II. 122. The sudden and unrelative modulation from F to E♭.
