hearma
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.
hearma
Substitute: A field-mouse or a dormouse Hearma megale ( = μυγαλῆ ), Wrt. Voc. ii. 114, 2 : 55, 60. [Cf. migale ignota nisi similis est camelioni, Shrn. 29, 12. This is in a list of glosses to Leviticus c. xi: in v. 30 mygale occurs in the Vulgate and the A. V. has ferret.] Hearma netila, ii. 114, 61 : 60, 10: i. 22, 50. Herma, Txts. 116, 225. [O. H. Ger. harmo mygale, cameleon.] See next word.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.