quoting kodé:

quoting Anguipes:

Blood Kinship: maternal uncles are "mother's maternal siblings", there is no term for their children.  There are no terms for paternal aunts or their children.

Just curious: are paternal aunts and their children taboo relatives, where you're not allowed to talk to them? Or is there just no specific term for them?

There's no specific root term, and they're not blood relatives by celestial law.  Which makes it a good idea to talk to them, as they are perfect endogamy fodder (along with your paternal uncles and their children, or children of your maternal uncles...).