What is the origin of the name for the insect called an earwig?
The name “earwig” is generally said to originate from an old European belief that earwigs crawl into people’s ears and lay eggs in the brain. This etymology is given by the Oxford English Dictionary, which states unequivocally that the name is derived from Old English éare, “ear”, and wicga, “insect”, “from the notion that it penetrates into the head through the ear.” Earwigs do tend to prefer being in hidden places, and this etymology parallels the unambiguous French name perce-oreille (“ear piercer”). Another hypothesis is that the word comes from the Late Latin auricula, owing to the ancient use of pulverized earwigs as medicine to treat diseases of the ear. A third explanation is that it is an alteration of “ear-wing”, after the shape of the hind wings when unfolded.
