eorþ-weall
This might be just a supplemental entry substituting part of an entry in the Main Volume.
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
eorþ-weall
Substitute: I. a rampart, mound made by the earth taken from a dyke and raised along it Hé hit begyrde and gefæstnade mid díce and mid eorðwealle magnam fossam firmissimumque uallum duxit, Bd. 1, 5; Sch. 17, 20. Mid díce and mid eorðwealle útan ymbsealde circumvallante aggere, 4, 28; Sch. 520, 1. Se cásere hét dícian and eorðwall (-weall, v. l.) gewyrcan uallum fecerat, 1, 12 ; Sch. 33, 27. II. a wall formed by the ground, the side or roof of a cave Hé beáh under eorðweall he went into the cave, B. 2957. Inn under eorðweall, 3090. (Cf. under wealle, 3060. Beorges getrúwode, wíges and wealles, 2323.)
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A Combined List of Abbreviations.