(UN-1 7.)
1390. Gower, Conf., I. 77. Who that is to trowthe unplein.
150020. Dunbar, Poems, lxvi. 11. The figurit speiche, with faceis tua, The plesand toungis, with hartis unplane.
c. 1530. L. Cox, Rhet. (1899), 86. It was a great folye to put in tho wordes which made a playne mater to be vnplaine.
1538. Elyot, Salebrosus, vnplayne, where a manne can not goo, excepte he do leape.
Hence Unplainness.
1619. Sir J. Sempill, Sacrilege Handled, 56. Paul then is wrong quarrelled for his vnplainenesse.