Obs. Forms: 5 birtylle, byrtyl, 6 brytyl. A sweet apple. Also in comb. birtle-tree.
1483. Cath. Angl., 33. A Birtylle, malomellum; a Birtylle tre, malomellus.
1500. Ortus Voc., Malomellus, a brytyl tre.
[1847. Halliwell, Birtle, a summer apple. Yorksh.]
