pistol-rǽdere
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.
pistol-rǽdere
Substitute: A subdeacon, who reads the epistle in the service Gescrýdde mid mæssehacelum sácerd, diácon and pistelrǽdere (subdiaconus) ádreógan þénunga hyra . . . Pistolrǽdere, swá oft swá hé mid mæssehacelan byþ gescrýd, hé dó of hí þænne hé rǽd pistel; þǽm gerǽddum eft mid þǽre hé sí gescrýd, Angl. xiii. 406, 581-586. Þænne se pistelrǽdere gá upp tó rǽdenne þá rǽdincge, 417, 739. Andswarigende twégen pistelrǽderas standende tóforan þǽre róde hí singan, on Grécisc, 418, 757. Cf. sub-, under-diácon.
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A Combined List of Abbreviations.

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A Combined List of Abbreviations.