from the GNU version of the Collaborative International Dictionary of English
- n. Probably a corruption either of charlock or hardock.
from The Century Dictionary and Cyclopedia
- n. The name of some plant referred to by Shakspere and Drayton; perhaps an error for charlock (Brassica Sinapistrum), or for hardock, supposed to be the burdock (Arctium Lappa).
Sorry, no etymologies found.