Cite the scanned version of the original dicionary like this:
Toller, T. Northcote, and Joseph Bosworth. "tengan." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth : Supplement. Oxford: Clarendon Press, 1921. 721.
;p. de To press, hasten, hurry, proceed with haste or violence :-- Ðá tengde se Pharao æfter mid mycelre fyrde then Pharaoh hastened after with a great army, Homl. Th. i. 312, 3: ii. 194, 16. Hé ðá þearle áblicged áweg tengde, 182, 2. Hé ontende ða burh and tencgde him forð syððan, Homl. Skt. ii. 25, 416. Se cásere tengde tó ðam botle, Homl. Th. i. 430, 23. Se fugol tó wuda tengde, ii. 162, 27. Æt suman cyrre tengde hé tó fyrde ongeán Persiscne leódscipe on one occasion he was hastening to march against Persia, i. 448, 32.