I am reading a book and I am finding this kind of expressions:
-'Why, people in perfect health act in the same way too,'
-'Why, are you all afraid of me?'
-'What nonsense he is talking! Why, you are in a sentimental mood today, are you?'
-'And why should they compensate me? Why, he was drunk and threw himself under the horses'
My wondering is about the use of the bold "why". I understand it as an expression, perhaps equivalent to "ah?" or "what?", but I am afraid my understanding is not correct or inaccurate. Help please!