Buzz
Every word has a beginning, and through the meticulous efforts of historical linguists and dictionary experts, we can often trace a word’s journey, even if not to its absolute origin. For instance, the term water can be linked to an ancient Germanic root by comparing it to similar words in other Germanic languages: Dutch water, German Wasser, and Old Icelandic vatr. Similarly, the word fruit entered English from French, with its earliest recorded usage coinciding with the Norman rule in England.
Occasionally, despite extensive research and analysis, the origins of certain words remain elusive. While this is expected for slang or risqué terms—often omitted from written records—it’s surprising when common, everyday words resist explanation. Anatoly Liberman of the Oxford English Dictionary notes, “Etymology’s progress lies not only in uncovering true origins but also in dismissing incorrect theories. One of its sobering victories is admitting, ‘origin unknown.’”
Below are 15 everyday English words whose etymological roots continue to baffle experts.
1. Dog
While English has terms like hound, which shares roots with Germanic words such as Hund, and cur, linked to growling-related terms, the most prevalent word, dog, stands apart. It bears no resemblance to words in other languages and appears connected to other enigmatic English terms like pig, hog, stag, and the wig in earwig. Are these words too ancient to trace? Could they have originated as playful nicknames or slang? Despite numerous theories, their origins remain unresolved.
2. Bad
Few concepts are as fundamental as bad and good. While good has clear cognates in languages ranging from Gothic to Old Saxon to Dutch, and evil stems from a Germanic root, bad stands isolated. Its earliest documented uses described spoiled food, but its linguistic roots remain a mystery.
3. Big
The term big represents a simple idea, yet it wasn’t commonly used in Old English, where mickle or great were preferred. It only emerged in the 14th century. Could it have been borrowed from a Scandinavian term referring to a wealthy, influential man? Or perhaps derived from a personal name? Its origin remains labeled as “unknown.”
4. Girl
While maiden traces back to a Germanic root and damsel to a French one, the origin of girl is unclear. It might stem from an old Germanic word for clothing or a term meaning child. Interestingly, it was once used for boys as well. In the 1300s and 1400s, gurles or gyrles referred to children of any gender, with “knave girl” specifying a male child.
5. Boy
The word knave has Old English origins from a Germanic root, but boy only appeared in the Late Middle Ages, initially as a derogatory term for a slave, rogue, or wretch. Could it have come from an old French word meaning “person in chains” or a Dutch term for messenger? The OED suggests that words like girl, boy, lass, and lad likely originated as playful adaptations of words with entirely different original meanings.
6. Donkey
The term ass has clear connections to Gothic, Latin, Celtic, and Semitic languages, but donkey remains an etymological puzzle. It emerged relatively recently, appearing in 18th-century slang dictionaries. Some theories suggest it derives from the adjective dun, referring to a dull brown color, or the name Duncan. Interestingly, it once rhymed with monkey.
7. Bird
In Old English, fugel was the more common term, tracing back to a Germanic root related to flying (which evolved into the modern word fowl). However, bird eventually became dominant. Originally spelled brid, it was once thought to be linked to brood, but historical linguistic patterns make this connection unlikely.
8. Surf
The noun surf, referring to breaking waves, first appeared in the 17th century. It may have originated as a blend of the old term suff, describing the sea’s inrush, and surge. Alternatively, it could have been borrowed from an Indian language.
9. Fuss
The word fuss emerged in the early 1700s to describe an exaggerated or overly dramatic commotion. Its origins might stem from mimicking a rustling or blowing sound, a connection to the English word force, or an influence from another language.
10. Blight
Despite its appearance as an old English term with Germanic roots, evidenced by the gh spelling, blight wasn’t documented until the 17th century. It seems to have started as a gardening term before gaining broader usage.
11. Log
An Old Germanic root, laeg, related to lie, evolved into a term for a felled tree in Old Norse. However, etymologists dismiss this as the source for the English word log, as sound change rules would have rendered it low. It might have been borrowed from a later Scandinavian language due to the timber trade, or it could imitate the sound of something heavy and large.
12. Tantrum
The term tantrum, describing a sudden outburst of anger, first appeared in print in 1714. Its origins remain unknown, and even linguistic experts have not proposed any definitive theories about its etymology.
13. Toad
The word toad dates back to Old English, yet it lacks any known relatives in related languages.
14. Curse
Some theories suggest that the term curse might be linked to cross, but no definitive connection has been proven. It has no identifiable counterparts in Germanic, Latin, or Celtic languages.
15. Kick
Initially, etymologists speculated that kick might derive from the Welsh word cicio, but it was later discovered that cicio actually came from English. Another theory proposes an Old Norse origin meaning “bend backwards, sink at the knees,” though this has not gained widespread acceptance.
This list was originally published in 2015 and later republished in 2019.
