a. Obs. rare. [f. THORN sb. + -ISH1.] Thorny, prickly.
1426. Lydg., De Guil. Pilgr., 11234. Me thouthe I sawh a fforkyd weye Partyng at an heg on tweyne, Thykke and thornyssh in certeyne.
1577. Frampton, Joyful News, II. (1596), 79. The fruite of a tree very great, alter the maner of Thornish Chestnuts.
