The word "他们" is formed by combining the character "他", which denotes "he" or "him" and is structurally composed of the person radical "亻" alongside the component "也", with the character "们", which acts as a plural suffix. "们" itself is built from the person radical "亻" combined with "门", primarily serving as a phonetic element, and when appended to "他", it collectively signifies multiple individuals, thus creating the term for "they" or "them" through this additive morphological process.