gengan
This might be just a supplemental entry adding to an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
gengan
AddNovƀ and Decƀ mid seofon rihtingum glædlíce gengað, Angl. viii. 302, 8. Man gengde geond eall ábútan þone portweall, Hml. S. 23, 267. For him Jordanen gengde on hinder Jordanis conversus est retrorsum, Ps. Th. 113, 3. Fengel geatolic gen[g]de, B. 1401. Ná him streámas gewǽttan fót, þá hí on Jordane gengdan æfter abierunt in sicco flumina, Ps. Th. 104, 36. Giestas gengdon, Reim. 11. [Forð gengden (geinde, 2nd MS.) þa quenen ȝeond wudes, Laym. 12865. Þe hare gengþ a wey ward, O. and N. 376. Goth. gaggida abiit.] v. tó-gengan.
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A Combined List of Abbreviations.