This is the 15183rd most frequent Russian word.
помешивая
"Stirring."
The word 'помешивая' is a participle used to describe simultaneous action while cooking the soup to prevent burning.
Я готовлю суп, помешивая его, чтобы он не пригорел.
I am cooking soup, stirring it to prevent it from burning.
Here, the word 'помешивая' indicates the concurrent action of stirring tea during reading.
Он читал книгу, помешивая чай ложкой.
He was reading a book, stirring tea with a spoon.
In this sentence, 'помешивая' describes the action of stirring the sauce while standing at the stove.