This is the 12465th most frequent Polish word.
nagietka
The Polish word "nagietka" refers to "calendula" or "marigold" (a type of flower).
Here, 'nagietka' is used in the genitive case of 'nagietek', referring to the calendula plant, from which the cream is made.
Kupiłem krem z nagietka na podrażnioną skórę.
I bought a marigold cream for irritated skin.
In this sentence, 'nagietka' is in the genitive singular form describing the flowers in the garden.
W ogrodzie mam piękne kwiaty nagietka.
I have beautiful marigold flowers in my garden.
'Nagietka' in this context is also in the genitive case, signifying association with the marigold plant.