English

thunderbug

From thunder + bug.

A compound of thunder + bug

Proto-Indo-European *(s)ten-

Proto-Germanic *þunraz

Proto-West Germanic *þunr

Old English þunor

Middle English thunder

Middle English bugge ‘scarecrow, hobgoblin’

English bug

Today it means

noun A thrips.

Language periods are conventional ranges, not dates for this word.

Etymograph / thunderbug