romerillo

noun
ro·​mer·​il·​lo | \ ˌrōməˈri(ˌ)lō\
plural -s

Definition of romerillo

1 : any of several tropical American plants with an aromatic odor most of which yield native remedies or dyes: such as
a : a South American herb (Heterothalamus brunioides) of the family Compositae whose flower heads yield a yellow dye
b : a Mexican shrubby milkweed (Asclepias linaria) that yields a violent purge
c : any of several Mexican plants of the family Compositae (especially Porophyllum scoparium and Chrysactinia mexicana)
2 : the dye yielded by the South American herb romerillo

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History and Etymology for romerillo

American Spanish, diminutive of romero rosemary, from Latin ros maris, literally, dew of the sea, from ros dew + maris, genitive of mare sea

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