This is the 6041st most frequent Polish word.
adasia
"Adasia" is a diminutive form of the name "Adam" in Polish, often used as a term of endearment.
Used as a name in the genitive (or accusative) case.
Wczoraj spotkałem Adasia na rynku.
Yesterday, I met Adasia at the market.
Adaś is used here as a diminutive first name in nominative case.
Każdy z nas zna jakiegoś Adasia.
Each of us knows some Adaś.
Adasia is in the dative case here, showing the indirect object of the sentence.