hǽl
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.
hǽl
omen. AddHael omen, Wrt. Voc. ii. 115, 52. Nǽfre hé on aldordagnm ǽr ne siððan heardran hǽle healþegnas fand never in all the days of his life, before or since, less auspiciously (cf. Icel. íllu heilli malo augurio ; m evil hour) did he come upon hall-thanes, B. 719.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.