, e; f. Thunder-plant (v. E. D. S. Pub. Plant Names), house-leek; sempervivum tectorum :-- Nime þunorwyrt, Lchdm. ii. 118, 2. [On plants that were a protection against thunder, see Grmm. D. M. pp. 167, 1147.]
Cite the scanned version of the original dicionary like this:
Bosworth, Joseph. "þunor-wyrt." An Anglo-Saxon Dictionary: Based on the Manuscript Collections of the Late Joseph Bosworth. Ed. Thomas Northcote Toller. Oxford: Clarendon Press, 1898. 1076.