Definition of passion dock in English:

passion dock

(also payshun dock, peyshen dock)

noun

English Regional, Northern
  • The plant bistort, Polygonum bistorta.

Origin

Early 19th century; earliest use found in William Carr (d. 1843). Apparently from passion + dock.

Pronunciation

passion dock

/ˈpaʃn ˌdɒk/