This is the 901st most frequent Greek word.
λάρισας
"Λάρισας" is the genitive case of "Λάρισα," meaning "of Larissa," referring to the city of Larissa in Greece.
In this sentence, "Λάρισας" (Larissa) is in the genitive case to denote possession or relation, implying 'the city of Larissa'.
Ο Γιάννης επισκέφθηκε την πόλη της Λάρισας.
John visited the city of Larissa.
Here, "λάρισας" (Larissa) again is in the genitive case, specifying origin or type regarding the cheese.
Το τυρί λάρισας είναι γνωστό σε όλη την Ελλάδα.
The cheese from Larissa is famous all over Greece.
In this example, "Λάρισας" identifies the place of origin or association of the residents, using the genitive case.