Þunrian

According to the Old English Dictionary:

þunrian

p. ode To thunder :-- Hé is mægenþrymmes God and hé þunraþ ofer manegum wætertnn Deus majestatis intonuit, Dominus super multas aquas, Ps. Th. 28, 3. Hit ðunraþ tonat, Ælfc. Gr. 22; Zup. 128, 17. Hit hwílum þunraþ, Bt. 39, 3; Fox 44, 34: Met. 28, 55. Seó menio sǽdon ðæt hyt þunrode (tonitruum factum esse), Jn. Skt. 12, 29. Þunerode of heofonum Drihten intonuit de coelo Dominus, Ps. Spl. T. 17, 15. [O. H. Ger. donarón.] þunrian