The word descendant refers to something that has come down. For example, everyone is a descendant, or the end of a line of ancestors, just as modern art is a descendant of past art that contributed to its style and technique.
The word descendant comes from the word "descend" which means to move in a downward direction. Note that the word can also be spelled with an "-ent" ending. Philosopher Herbert Spencer wrote, “The wise man must remember that while he is a descendant of the past, he is a parent of the future.” Have you ever wondered what your descendants will know about you? Perhaps you could leave them your peanut butter and banana sandwich recipe.