It gets even more complex when there are regional and family differences in the naming schema. For example, my cousins on my moms side and dads sides respective

It gets even more complex when there are regional and family differences in the naming schema. For example, my cousins on my moms side and dads sides respectively use different words for some relations, and then they sometimes use an entirely different set of words with their other sides of the family. All in the same language, but based on background, dialect, etc. So my working knowledge of naming schema ends up being very, very large. Thankfully the relations they map to are standardized in the language so it's just word swapping.