What does dost mean in Shakespearean writing?

"Dost" is a contraction of "doest", which is the second-person singular present tense of the verb "to do". It's essentially the old-fashioned way of saying "do you" or "does one".

Here are some examples of how "dost" is used in Shakespeare:

* "Dost thou love me?" (Do you love me?)

* "What dost thou mean?" (What do you mean?)

* "He dost not know the truth." (He does not know the truth.)

In modern English, "dost" is considered archaic and is rarely used. However, it's still commonly encountered in Shakespearean plays and other works of Elizabethan literature.