"اَتڻ" (pronounced aṯann) refers to the act of dancing

a traditional form of dance, often associated with cultural events, celebrations, and gatherings

lively and rhythmic dance, typically performed in a circle or a group setting

In Sindhi language it is also used to say or tell.

For example: اُداهرَڻ = چوڻ، بيان ڪرڻ, چوڻ ، آکڻ ، ڪَهڻ

Other words are also drived from it, اُڪتَ = اُتل، چيل

Sindhi poet Shah Abdul Latif also used it in his poerty:

1. آري اُتن جيئن، اُونءَ تان اوٺين نه ڪيو.“ شاھ

2.آخر والعصر جو، اِيهين اُتائُون. شاھ