How “Ebola” got its name

Last post, I examined the etymological etiology of hantavirus. This post, I will zoom the lexical microscope in on another viral disease, and one proving far deadlier and more dangerous: Ebola.

Centered in the Ituri Province in the northeast of the Democratic Republic of the Congo (DRC), the outbreak has claimed nearly 200 lives as of writing—and counting. 

Hantavirus and Ebola, as it turns out, have a lot more in common than causing health emergencies starting in April 2026:

Both are types of filovirus, so named for their strand-like form. (Filo- is based on the Latin filum, “thread.”) Both cause hemorrhagic fever, a symptom that contributes to their lethality. Both are transmitted by mammals, with rodents spreading hantavirus and fruit bats, Ebola. Both were also first isolated in the late 1970s. 

And both hantavirus and Ebola are named for rivers. Hantavirus, as we saw, traces its name to the Hantan River in Korea. Ebola, as we will learn, takes its title from a river in the Democratic Republic of Congo some 600 miles west of the current outbreak in Ituri. 

Ebola etymology

Ebola was first discovered as part of a terrifying epidemic around September 1976 plaguing Yambuku, a small village hugging the equator in the northwest of Zaire, now the DRC. 

Credit for the discovery of Ebola has traditionally gone to Peter Piot, a Belgian microbiologist who analyzed samples of the virus in Antwerp. Since the initial outbreak, however, the Congolese researcher who collected those samples, Jean-Jacques Muyembe-Tamfum, has received overdue acknowledgement as a co-discoverer.

The discovery of Ebola might best be understood, though, as the work of a team, which included two American scientists, Karl Johnson and Joel Breman. Several accounts recognize Johnson and Breman for the name Ebola; others, Peter Piot. Either way, researchers feared that naming the virus Yambuku, after its village epicenter, would bring shame and stigma to the community. So, a different contextualizing feature, the Ebola River, was chosen. The river, some 70 miles north of the village near the border of the Central African Republic, was apparently thought to be closer. 

The Ebola River flows into the Mongala, which flows into the mighty Congo that girds this massive country. It owes its name to French—or rather, French-speaking Belgian colonists under the ruthless rule of Leopold II starting in the late 1800s. French speakers are said to have corrupted Legbala, the native name for the river in Ngbandi, into l’Ébola, or “the Ebola.”

Spoken by an ethnic group of the self-same name, Ngbandi comprises several language varieties within the diverse, numerous Ubangian languages. According to a 1939 article in Aequatoria, a French academic journal dedicated to Central African languages,  the Ngbandi word Legbala is said to literally mean “white waters.” That’s in contrast to the southerly tributary of the Dua, or Dwa, noted for its dark waters by Europeans. 

The Oxford English Dictionary first records Ebola in 1976, the smae

From Legbala to Ebola

I have not been able to decode Legbala any further. For instance, the word for water across Ngbandi dialects is ngú; my knowledge and resources limited, I have not been able to decipher any grammatical transformations in Ngbandi that would turn ngú into any part of Legbala. I can say that Legbala contains a so-called labio-velar consonant, gb, which involves articulating a g and b at the same time—and which is not a sound in French. So, French elided the g sound and rendered the initial syllable, Le-, as if it were the definite article, le, “the,” contracted with a name, Ebola, yielding l’Ebola.

The earliest record of Ebola in English comes later in the same year as that fateful outbreak in Yambuku: 1976. The Oxford English Dictionary cites the New York Times in December that year: “The virus responsible for the recent epidemic of green monkey fever … will be known as the Ebola Virus, after a river in the north [of Zaire].”

Now, researchers originally thought Ebola was Marburg virus, which is also a filovirus. Marburg virus is named after Marburg, a city in central Germany where it was discovered in 1967. The source of the infections was traced back to African green monkeys, which had been shipped from Uganda to Europe—and why the disease was once referred to as green monkey fever.

Just as they are different types of hantavirus, so there are several kinds of Ebola virus. Behind the current 2026 outbreak is what’s called Bundibugyo virus—or more technically, Bundibugyo ebolavirus. Bundibugyo is a town in Uganda near the border of the DRC where the species was first discovered.

Now, as to the extent calling it the Bundibugyo virus does or does not stigmatize that village …