Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "gabote." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 356.
.Add :-- Gabutan (gauutan, Corp. Gl. H. 87, 27, and see note on the word at p. xlii where the following Latin glosses are quoted, 'parapsis, gabata vel catinum' 'pisi, gavata (v. l. gabata) vel patina') parabsides, Ep. Gl. 18 f, 25. [O. H. Ger. gebeta(-ita, -iza) catinum gavata, vasis. From Latin.]