Obs. exc. dial. [UN-1 12. Cf. NON-POWER.] Want of power; inability; weakness; helplessness.
c. 1380. Wyclif, Serm., Sel. Wks. I. 371. Þis drede haþ no peyne, but unpower for to synne.
1402. Jack Upland, in Pol. Poems (Rolls), II. 36. Then puttest thou on Christ unkunning, unpower, and evill will.
c. 1440. Gesta Rom., lii. 233. Þerfor do not aftir the worlde, ne abide not age, vnpower, or blyndnesse.
a. 1470. H. Parker, Dives & Pauper (W. de W., 1496), II. xiv. G iiij b. Yf it be soo that þt othe be made the man that he made it to can not vnbynde hym from that othe but nede or unpower excuse hym.
1847. in southwestern dial. glossaries.