ぞ Common particle English jmdict 1 particle male term or language adds force or indicates command used at sentence end そろそろ寝る時間だぞ。 It's time you went to bed.
終ぞついぞ Adverb English jmdict 1 adverb (fukushi) word usually written using kana alone never;not at all used with neg. verb 彼が友人の期待を裏切るかもしれないとはついぞ思わなかった。 It never occurred to me that he might fail his friend.