The neighborhood Jungnim-dong got its name by combining parts of "Yakjeonjung-dong" and "Hanrim-dong". Yakjeonjung-dong was named after its historical role as a medicinesupplier in Jangan during the Joseon period. Hanrim-dong was named after the Lee Jung-am family, whose three brothers all resided there and served in the Hanrimgovernment during the same period. Other old villagenames in the area include Gaundong-mal, Hanrim-gol, and Hyungjeumulgol.