What is the meaning of Colchicum?

Any of several flowers of the genus Colchicum.

The dried seed of the poisonous meadow saffron, Colchicum autumnale, used medicinally.

inflection of colchicus:

  1. nominative/accusative/vocative neuter singular
  2. accusative masculine singular

nominative/accusative/vocative neuter singular

accusative masculine singular

Source: wiktionary.org