இருட்டு

Etymology
From. Cognate to 🇨🇬.

Noun

 * 1) darkness
 * 2)  figuratively, obscurity of mind, ignorance
 * 1)  figuratively, obscurity of mind, ignorance

Verb

 * 1) to grow dark
 * 2) to darken (as when clouds gather)
 * 1) to darken (as when clouds gather)