An indigo-colored dye obtained from certain plants (the indigo plant or woad), or a similar synthetic dye.
An indigo plant, such as from species in genera Indigofera, Amorpha (false indigo), Baptisia (wild indigo), and Psorothamnus (genus) and Dalea (indigo bush).
Adjective
having a deep purplish-blue colour
Origin
16th century (as indico, modern spelling from the 17th century), Spanish índigo, Portuguese endego (modern índigo), or Dutch (via Portuguese) indigo, all from Latin indicum, from Ancient Greek Ἰνδικὸν, from Ἰνδία.
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