hrycg
This might be just a supplemental entry adding to an entry in the Main Volume.
Related §§ in Wright's OE Grammar:
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
hrycg
Add:I. the spine of man or animal Hryg dorsum, bæc terga, Wrt. Voc. i. 283, 43. Hricges spinę (draconis ), An. Ox. 2467. Geseah hé þǽr sæt án deófol on þǽre cú hrycge, Hml. S. 31, 1047. II. a ridge. v. gráf-, lǽg-, middel-, sand-, stán-, timber-hrycg, and Midd. Flur. s. v.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.