hyll, f.n: a hill.
Image from Midori Snyder’s “In the Labyrinth” blog, originally from the Medieval Animal Data Network. Some delightful marginal rabbits from the Luttrell Psalter, created for Sir Geoffrey Luttrell of Irnham in Lincolnshire in c. 1325 and 1335. The manuscript is at the British Library, MS Add. 42130, fol. 176v.