What does how art thou mean in old English?

"How art thou" is a shortened form of "How art thou doing?" It's a way of asking someone how they are feeling or doing in old English.

It's important to note that "thou" is a second person singular pronoun used for addressing someone directly, and "art" is the second person singular present tense of the verb "to be".

So, in modern English, "How art thou" translates to "How are you?"