What does anil mean?
Anil is a noun denoting the tropical shrub Indigofera tinctoria and closely related leguminous plants, long cultivated across India, Southeast Asia, and later the Americas as the primary source of natural indigo dye. By extension, the word also names the deep-blue dye itself, which was extracted through fermentation of the plant's leaves. The term entered English in the sixteenth century via Portuguese and Spanish, ultimately tracing back through Arabic to Sanskrit roots connected with the color blue. Historically, anil carried enormous economic weight: indigo plantations shaped colonial trade routes and labor systems in India, the Caribbean, and the American South before synthetic dyes, developed in the late nineteenth century, undermined the natural industry. Today anil survives mainly in botanical, historical, and textile scholarship, having ceded everyday currency to the more familiar word 'indigo'.
nounA tropical shrub of the genus Indigofera (especially Indigofera tinctoria), cultivated as the principal source of natural indigo dye; also, the blue dye itself obtained from this plant.
- The tropical shrub Indigofera tinctoria (and related species), whose fermented leaves yield indigo dye.
- The deep-blue dye (natural indigo) extracted from the plant.
"The colonial plantations of India and the Caribbean were built largely on the cultivation of anil for its prized blue dye."
"Farmers harvested the anil crop at dawn, when the leaves held the richest concentration of indican."
"Bales of dried anil were shipped from Calcutta to European textile mills throughout the eighteenth century."
Rarely pluralized in practice; when referring to multiple varieties or crops, writers more often use terms like 'indigo plants'.
"Several species of anils are grown across the tropics for dye production."
Before synthetic dyes existed, entire economies — and fortunes — rose and fell on one humble shrub called anil, whose leaves yielded the world's most coveted shade of blue.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of anil
Anil entered English in the sixteenth century through Portuguese and Spanish, both of which borrowed the term from Arabic al-nīl ('the indigo'), itself derived from Sanskrit nīlī, the name of the indigo plant and of the color blue. The same Sanskrit root underlies the English word 'indigo', which reached Europe by a different route through Greek and Latin. The chemical compound aniline takes its name directly from anil, having first been isolated from the indigo dye.
Related word forms
How anil is actually used
Anil is a technical and historical term, encountered chiefly in botany, textile history, and discussions of the pre-synthetic dye trade. In everyday modern usage it has been almost entirely displaced by 'indigo', which refers both to the dye and loosely to the plant.
Easily confused with anil
Annul is a verb meaning to declare something void or invalid, whereas anil is a noun referring to the indigo-producing shrub or its dye.
An anion is a negatively charged ion in chemistry, while anil is a plant or dye; the two share only a superficial resemblance in spelling.