This is the 8551st most frequent Spanish word.
rossel
"Rossel" is not a standard Spanish word. It may be a proper noun, name, or misspelling.
'Rossel' is used here as a proper noun, likely a name.
Visité la casa de Rossel ayer.
I visited Rossel's house yesterday.
'Rossel' in this context is used as an adjective or attribute to describe a specific style.
Este mueble tiene un estilo rossel muy marcado.
This piece of furniture has a very pronounced Rossel style.
In this sentence, 'Rossel' refers to an author, used to indicate the individual who published the book.