Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
BOTTOM
As described in historical dictionaries
Patronymica Britannica (1860)
* BOTTOM.* Mr. Ferguson says that " one half of the Directory may be said to explain the other half. Take for instance the names ending in Vottoin, v.'hich signifies a valley, or low ground. We have : —
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English