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The Collaborative International Dictionary
Oleraceous

Oleraceous \Ol`er*a"ceous\, a. [L. oleraceus, from olus, oleris, garden or pot herbs, vegetables.] Pertaining to pot herbs; of the nature or having the qualities of herbs for cookery; esculent.
--Sir T. Browne.

Wiktionary
oleraceous

a. Relating to potherbs.