The word 瞎猜 is formed by combining the character 瞎, meaning 'blind' or 'blindly,' which is composed of the eye radical 目 and the phonetic component 害, with the character 猜, meaning 'to guess,' composed of the dog radical 犬 and the component 青. Together, 瞎 directly modifies 猜 to convey the act of guessing without evidence or insight, literally meaning 'to guess blindly.'