# indigo

> English word · Noun · IPA /ˈɪn.dɪˌɡəʊ/ · frequency rank #19,366

## Definitions
1. A purplish-blue color.
2. A greenish dark blue color; the color of indigo dye.
3. A blue-colored dye obtained from certain plants (indigo plant or woad), or a similar synthetic dye.
4. An indigo plant, such as from species in genera Indigofera, Amorpha (false indigo), Baptisia (wild indigo), and Psorothamnus and Dalea (indigo bush).

## Etymology
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 (“indigo”), from Ancient Greek ἰνδικόν (indikón, “Indian dye”), from Ἰνδία (Indía). Doublet of Indic.

## Easily confused with
- **Indo** (https://plainspell.com/en/vs/indigo-vs-indo)
- **indio** (https://plainspell.com/en/vs/indigo-vs-indio)
- **Indira** (https://plainspell.com/en/vs/indigo-vs-indira)
- **Indi** (https://plainspell.com/en/vs/indi-vs-indigo)
- **India** (https://plainspell.com/en/vs/india-vs-indigo)
- **indie** (https://plainspell.com/en/vs/indie-vs-indigo)
- **Indian** (https://plainspell.com/en/vs/indian-vs-indigo)
- **Indies** (https://plainspell.com/en/vs/indies-vs-indigo)
- **indica** (https://plainspell.com/en/vs/indica-vs-indigo)
- **indict** (https://plainspell.com/en/vs/indict-vs-indigo)

## Common misspellings (8)
`idnigo`, `inddigo`, `indgio`, `indiggo`, `indiog`, `inidgo`, `inndigo`, `nidigo`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/indigo