I have used and mentioned this word in various examples already. This word has actually two meanings. If is it used with a color, an object or a situation, it means dark. For example: seli xala is a dark turquoise. If it is used referring to a person, or with the ‘he suffix, it means dark-skinned or a, well, black*. Xala’het means ‘something dark’ and xala’tan means darkness.
Example (thanks to Taeshan for this one): Isa’xen xala’tan’han ji… il’ki… (go-IMP1PL darkness-ALL and… 2S-know: Let’s go into the dark and… you know…) listen
*or whatever the current politically correct term is.