;interj. Ha ha! - Ha ha and he he getácniaþ hlehter on léden and on Englisc ha ha and he he denote laughter in Latin and in English, Ælfc. Gr. 48; Som. 49, 17.
Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "ha ha." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 496.