No luck on the Plum Pudding front as yet, there is this...
"PLACE NAMES IN KENT.
BY
CANON J. W. HORSLEY,
Late Vicar of Detling. "
"Fright or Frith. — "A thin, scrubby wood."
So the Fright Woods near Bedgebury. And I
learned to skate as a boy at the Fright Farm on
Dover Castle Hill. This may account for Frith
by Newnham, and possibly also for Frittenden. "
"Shepherdswell, near Dover, has nothing to
do with a shepherd or a well ; but is an early
corruption of Sibertswalt, as it appears in
Domesday, i.e., the wood of Sibert. The phonetic
changes are found in later charters and wills,
Sybersysw'eld in 1474, Sybberdiswold 1484, Ship-
riswold 1501, Shepswold 150G, and Sheperters-
wold in 1522. Suabert, or Sieberht, was a great
Saxon thane, and granted land in Sturgeth
(Sturry) and Bodesham to St. Domneva's new
Minster in Thanet, while in a charter of 814 we
read of Selebertincg-lond. Great Chart was
originally Selebert's Chart. Sibbcrtston (or
Selebertston) was a sub-manor in Chilluim, and
there is still the Hundred of Sebrittenden or
Sclcbertsden in what was the old Lathe of Wye."
http://www.archive.org/stream/placenamesinkent00hors/placenamesinkent00hors_djvu.txt