ná-hwǽr
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.
ná-hwǽr
. I. AddHé áxode, 'Hwǽr ǽton gé?' Hí cwǽdon, 'Náhwǽr (nó-, v. l, nusquam ),' Gr. D. 127, 5. Hié ne dorston þæt land náwér (náwǽrn, -wérn, v. ll. ) gesécan on þá healfe, Chr. 918; P. 98, 26. Hé of mynstere nolde náwár beón gemét, Hml. Th. ii. 506, 4. I a. fig. :-- Gyf hyt nú fǽrenga gewurde, nyste ic náhwǽr eorðan hú ic ongynnan wolde (I should not know how on earth to set about it ), Solil. H. 34, 12.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.