tonitruous from Latin tonitruum thunder (from tonitrus thunder, from tonare to thunder) + English -ous; tonitruant from Late Latin tonitruant- tonitruans, from present participle of tonitruare to thunder, from Latin tonitruum thunder
Love words?
You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Share