Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
ASK
As described in historical dictionaries
Patronymica Britannica (1860)
1" ASK. As a prefix in such local surnames as Askeby, Askham, Asliley, Askerby, Askwith, &c., is probably the A-Sax. asc, an ash tree. ASKE. A township in the N.R. of Yorkshire, the ancient abode of the family. ASKER. A corruption of Askew. ASKEW. Aiskew, a township in the parish of Bedale, N.R. Yorkshire; Ascue, Ayscue, Ascough, and Ayscough, are various spellings of this palronjinic.