This is the 10947th most frequent Swedish word.
lyst
Desire or longing.
Here, 'lyst' functions as an adjective expressing a pleased or radiant appearance.
Hon såg lyst ut när hon hörde nyheterna.
She looked pleased when she heard the news.
In this sentence, 'lyst' describes an attentive and keen manner of listening.
Han hade lyssnat med lyst på berättelsen.
He had listened attentively to the story.
Here, 'lysten' is a noun-related expression derived from 'lyst', referring to interest or enthusiasm for something.