Thonderynge

Part of speech: adjective

Definitions

1. Making a deep, loud rolling sound like the boom of thunder across the sky
2. Producing a booming, rumbling roar similar to a peal of storm thunder
3. Giving off a resounding, rolling noise like distant claps of storm thunder

Etymology: "Thonderynge" is a Middle English spelling of the present participle "thundering", the "-ing" ending showing the Middle English form of the verb "thonderen", meaning to make the sound of thunder. That verb descends from Old English "þunorian", built on "þunor" (thunder), which shares a Proto-Germanic root, *Þunraz, with the name of the god Thor, whose Old Norse form was "Þórr".