Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "tǽl-líc." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 969.
.Add: blameable, reprehensible :-- Gif ǽnig bið gemét teállic si quisque repertus fuerit reprehensibilis, R. Ben. I. 9, 54, 7. Þǽr ma[n] wógerlice leóð and tǽllice singe ubi amatoria et turpia cantantur, Chrd. 78, 34.