This is the 34th most frequent Estonian word.
sellest
"Sellest" means "of this" or "about this" in English.
In this context, 'sellest' means 'about this' and is used to refer to previously mentioned news.
Ma kuulsin sellest uudiseta.
I heard about this news.
Here, 'sellest' means 'about it,' indicating the topic of a future discussion.
Me räägime sellest homme.
We will talk about it tomorrow.
In this instance, 'sellest' translates to 'on this,' identifying the specific plan being abandoned.