Olifant is what they are called in Dutch, so it is likely is something like that in south African, where Tolkien was born.
Before the revolution, and for most of the nineteenth century there was hardly any common French idea. Like with most countries, community and tradition are recent inventions.
Graham Robb in ‘the discovery of France’ has the perfect analogy that a French dialect only carried as far as the nearest church bell. People a valley further would speak a different vernacular.
You’re not really seeing it, though, your seeing it’s distant past