This is the 17118th most frequent Polish word.
włosami
"Hair" (instrumental case).
The word 'włosami' ('hair') is referenced indirectly as 'włosy', as possessive third-person singular in the sentence to illustrate care.
Ona zawsze dba o swoje włosy i myje je specjalnym szamponem.
She always takes care of her hair and washes it with a special shampoo.
Here, 'włosami' is used in the instrumental case to indicate the means by which the action is performed.
Przeczesał włosami palcami, układając je.
He combed through his hair with his fingers, arranging it.
In this sentence, the instrumental case 'włosami' describes the affected object, her hair, engaging with the wind.