It has been suggested the Skiff and Geisterspeak may be the same language or closely related languages. The word (or word root) "tok" probably means "to fight" in both languages. Also, the word "ni" has appeared in Skifandrian "Ni tok!" and Geisterspeak "Tokkah ni!" in such a context that it could be either an imperative form, or the word "to do". If so, word order is significant in both languages, as a preceding "ni" seems be a negation, in this case "do not" or "stop", while a following "ni" is the affirmative or imperative form, in this case "do it". (Alternatively, "tokkah" may indicate a failure to fight.)