In Ghana they call white men wachiman (that's how it sounds at least). I understand that it is a deformation of "White man" in English
In Colombia wachiman or g'achiman means warden, vigilante, caregiver. It's an Anglicism for Watchman. Elsewhere the terms are also used in Spanish. serene or nightly (in Colombia we hardly use them).
WACHIMAN English wattchman, guard. Night, surveillance, caregiver. It comes from the time of the English colonies, where he was castanized the term of those who cared for the bkdegas of products to be shipped or disembarked in the ports.