The word "more" is used to indicate a greater quantity, number, or degree of something. It expresses the idea of an increase or addition beyond what is already present. For example, when we say "I want more apples," we mean that we desire a larger amount of apples than we currently have.
The word "more" originates from Old English "māra," which is related to the Old Norse word "meira" and has connections to Proto-Germanic "*maizō." This word has been used in the English language for centuries to denote increase or addition.