mistune

present singular third person mistunes · participle present mistuning · participle past mistuned · past mistuned

1. transitiveTo tune wrongly.

   The Harpe. […] A harper with his wreſt maye tune the harpe wrong Mys tunying of an Inſtrument ſhal hurt a true ſonge

   1568, William Cornishe [i.e., William Cornysh], “In the Fleete Made by Me William Cornishe otherwise Called Nyshwhete Chapelman with the Most Famose and Noble Kyng Henry the VII. His Reygne the XIX. Yere the Moneth of July. A Treatise betwene Trouth, and Information.”, in John Skelton, edited by J[ohn] S[tow], Pithy Pleasaunt and Profitable Workes of Maister Skelton, Poete Laureate, Imprinted at London: In Fletestreate, neare vnto St Dunstan-in-the-West by Thomas Marshe, →OCLC; republished as Pithy Pleasaunt and Profitable Workes of Maister Skelton, Poete Laureate to King Henry the VIIIth, London: Printed for C. Davis in Pater-noster Row, 1736, →OCLC, page 290

plural mistunes

1. An incorrect tuning.