Why does Sancho refer to Don Quixote as "your worship"?

Sancho refers to Don Quixote as "your worship" primarily due to his obligation as a squire. In the context of the story, this phrase reflects the social hierarchy and the formal relationship between a knight and his squire. By addressing Don Quixote this way, Sancho acknowledges Don Quixote's role as a knight and his own duty to serve him. It is a term that conveys respect and indicates Sancho's acceptance of his position within their partnership, even if he sometimes questions Don Quixote's judgments and actions. This terminology emphasizes the themes of loyalty and service prevalent in the narrative, illustrating the complexities of their relationship as they embark on various adventures together.