Used by Cockayne (who took it probably from Halliwells cheadle-dock) as a transl. of OE. cedelc; it could not however be the representative of this word, which from the Vocabulary cited appears to be = chadlock or charlock.
[a. 1000. Voc., in Wr.-Wülcker, 297. Mercurialis, cedelc, cyrlic. Ibid., 451.
c. 1000. Sax. Leechd., I. 186. Þas wyrte þe man mercurialis, & oðrum naman cedelc nemneð] Cockayne translates named mercurialis, and by another name cheadle.