As described in historical dictionaries

Patronymica Britannica (1860)

ABEE. A Celtic prefix to many names of places, signifying " anj' locality of marked character, either kuolly or marsliy, near the mouth of a stream, whelhcr the stream falls into a lake or sea, or runs into confluence with ouother stream." Gazetteer of Scotland. Several such localities have given rise to surnames, as Aliercrombie, Aberdwell, Aberkerdour, Aberuelhey.

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.


BritishSurnames.uk is a Good Stuff website.