Dop-fugel

According to the Old English Dictionary:

dop-fugel

Add:--Dopfugel mergus, Hpt. 33, 240, 23. Mergulum, niger avis, mergit sub aquam pisces quaerere, i. e. dobfugel, Shrn. 29, 4. Ðæs gífran dopfugeles voracis mer[g]ule, Wrt. Voc. ii. 76, 7: 56, 61. [O. L. Ger. dop-fugul.] dop-fugel