Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "á-blendan." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 755.
;p. -blende, pl. -blendon; pp. -blended, -blend; v. a. To blind, make blind, darken, stupify; cæcare :-- Ða gyldenan stánas ablendaþ ðæs módes eágan the golden stones blind the mind's eyes, Bt. 34, 8; Fox 144, 34. Swá bióþ ablend so are blinded, 38, 5; Fox 206, 1. Ic sýne ablende bealo-þoncum I blinded their sight by baleful thoughts, Exon. 72b; Th. 270, 22; Jul. 469. He ablende hyra eágan excæcavit oculos eorum. Jn. Bos. 12, 40. Ablended in burgum blinded as I am in these dwellings, Andr. Kmbl. 155; An. 78.