Other forms: toothaches
Toothache is a pain in a tooth. Have toothache, terrible toothache, toothache kept him awake.
In British English it usually takes no article, so people have toothache rather than a toothache. It is one of the oldest complaints in the language and the word has barely changed in a thousand years.
1nountoothacheA pain in a tooth.
“Toothache kept him awake for two nights before he rang the dentist.”
toothache is a pain.
Old English tothece is simply tooth plus ache, and the compound has survived unchanged in sense.
Old English
tōþeċe — toothache
Middle English
toth-ake
English, today
toothache
From Middle English toth-ake, from Old English tōþeċe (“toothache”). by surface analysis, tooth + ache.
Etymology from Wiktionary, CC BY-SA