[1] : The Collaborative International Dictionary of English v.0.48

cucking stool \cuck"ing stool`\ k?k"?ng st??l`. cf. as.
   scealfingst=ol, a word of similar meaning, allied to
   scealfor a diver, mergus avis; or possibly from f. coquine a
   hussy, slut, jade, f. of coquin, oe. cokin, a rascal; or cf.
   icel. k?ka to dung, k?kr dung, the name being given as to a
   disgracing or infamous punishment.
   a kind of chair formerly used for punishing scolds, and also
   dishonest tradesmen, by fastening them in it, usually in
   front of their doors, to be pelted and hooted at by the mob,
   but sometimes to be taken to the water and ducked; -- called
   also a castigatory, a tumbrel, and a trebuchet; and
   often, but not so correctly, a ducking stool. --sir. w.
   scott.
   1913 webster
see also:
castigatory tumbrel trebuchet ducking stool 

[2] : WordNet (r) 2.0

cucking stool
     n : an instrument of punishment consisting of a chair in which
         offenders were ducked in water syn: ducking stool
see also:
ducking stool 

Stool >> S Words
Stool, definition of term: Stool
stool_pag1.html

Ducking Stool >> D Words
Ducking Stool, definition of term: Ducking Stool
ducking+stool_pag1.html