One of these days there will be no words which are not forbidden. Case in point: "chief."
It's an English (via French "chef" and Latin, same root as "captain" and "chieftain." "Jefe" in Spanish.
Do any readers associate the word "chief" as disparaging to Native Americans? If the CEO is question doesn't want to be a boss, ok, but a CEO has to be a boss whether you like it or not.
In the Algonquin family of languages, a "sachem" was the boss.