Blackadder Water

Blackadder Water (/ˈblækədər/) is a river in Berwickshire in the Scottish Borders area of Scotland, forming part of the River Tweed system. It reached 2.84m at Mouthbridge, which was its highest level ever recorded on Tuesday 22 October 2002 at 2:45pm.[1]

Blackadder Water
A narrow river weaving between green fields
Blackadder Water below Greenlaw
Blackadder Water is located in Scottish Borders
Blackadder Water
Blackadder Water
LocationScottish Borders
Coordinates55°45′14″N 2°33′11″W / 55.754°N 2.553°W / 55.754; -2.553Coordinates: 55°45′14″N 2°33′11″W / 55.754°N 2.553°W / 55.754; -2.553
Basin countriesScotland


Adder may be derived from Brittonic *ador, *edir or Old English edre,[2] possible ancient hydronymic terms derived from an Indo-European formation meaning "a watercourse, a channel" (compare River Etherow).[2] From the possible Old English derivation of ǣdre, "a vein" (Anglian ēdre),[2] or *ǣdre, meaning "quickly", arise objections on the basis that these would have maintained the long initial vowel in English and Scots.[2]

Also suggested is derivation from Gaelic fad dûr,[3] meaning "long water".[3]


Rising in the Harecleugh Forest plantation just south of the Twin Law cairns, north of the village of Westruther, the headwaters of the Blackadder join with those of the Wedderlie, Edgar, and Fangrist Burns, before reaching the town of Greenlaw. The river proceeds in a meandering path through the Merse until it meets with the Langton Burn between the estates of Kimmerghame House and Wedderburn Castle. The Blackadder later becomes a tributary of the Whiteadder Water and joins with that river at the village of Allanton, where Blackadder House and its estate once stood.

The Whiteadder then crosses the English Border below Edrington where it joins the Tweed which empties into the North Sea at Berwick-upon-Tweed.

See alsoEdit


  1. ^ "Blackadder Water at Mouthbridge: River level and flood alerts". Retrieved 2020-04-21.
  2. ^ a b c d James, Alan G. "A Guide to the Place-Name Evidence - Guide to the Elements" (PDF). Scottish Place Name Society - The Brittonic Language in the Old North. Retrieved 25 October 2018.
  3. ^ a b Johnston, James B (1892). Place-names of Scotland. Edinburgh, Scotland: D Douglas. p. 162. Retrieved 4 February 2019.

External linksEdit