This is the 3953rd most frequent Polish word.
sławnie
"Famously" or "in a famous manner."
The word 'sławnie' is used here as an adverb to imply that Janek's victory was noteworthy and well-regarded.
Janek sławnie wygrał zawodach sportowych.
Janek famously won the sports competition.
Here, 'sławnie' acts as an adverb modifying 'znana', emphasizing the fame associated with the restaurant's quality.
Ta restauracja jest sławnie znana z wyjątkowej kuchni.
This restaurant is famously known for its exceptional cuisine.
In this sentence, 'sławnie' describes how the myth is told, highlighting its long-lasting reputation and prominence.