The word "噬咬" is formed by combining two characters, both meaning to bite. "噬" consists of the radical "口" (mouth) indicating its relation to oral action, and "筮" which primarily provides phonetic approximation to "shì", while contributing to the meaning of biting or devouring. "咬" similarly uses the radical "口" (mouth) for meaning and "交" for phonetic approximation to "yǎo", specifically denoting biting. Together, they form a compound word where each character reinforces the action of biting, often conveying a sense of vigorous or repeated biting.