The word "搀杂" is formed by combining the character "搀", composed of the radical "扌" (hand) indicating manual action and the phonetic component "毚" suggesting pronunciation, with the character "杂", meaning miscellaneous or mixed. Together, "搀" conveys the act of mixing, while "杂" denotes the heterogeneous elements being blended, resulting in a compound meaning to mix or adulterate.