Main Entry:

in·di·go

Pronunciation:

\ˈin-di-ˌgō\

Function:

noun

Inflected Form(s):

plural in·di·gos or in·di·goes

Etymology:

Italian dialect, from Latin indicum, from Greek indikon, from neuter of indikos Indic, from Indos India

Date:

1555

1 a: a blue vat dye obtained from plants (as indigo plants) b: the principal coloring matter C₁₆H₁₀N₂O₂ of natural indigo usually synthesized as a blue powder with a coppery luster2: indigo plant3: a deep reddish blue