Obs. In 45 iompre, 56 iumpere. [Origin obscure.] trans. To introduce incongruously or discordantly; to jumble together.
c. 1374. Chaucer, Troylus, II. 988 (1037). Ne Iompre [v.r. iumpere] ek no discordaunt þing y-fere, As þus to vsen termes of Phisyk.
13878. T. Usk, Test. Love, Prol. (Skeat), l. 30. How should than a frenche man borne soche termes conne iumpere in his matter, but as the Iay chatereth Englishe.
Jumper v.2, Jumperism: see JUMPER sb.1