Hearpe-

According to the Old English Dictionary:

hearp-nægel, es;

hearpe-

m. An instrument for striking the strings of a harp :-- Hearpnægel plectrum, Ælfc. Gl. 71; Som. 70, 96; Wrt. Voc. 43, 27. Apollonius his hearpenægl genam Apollonius took his harp-nail, Ap. Th.17, 7. hearpe,hearpe-