Is there a gender-neutral word for "aunts and uncles"/"parents' siblings"?

Brothers and sisters are siblings. Husbands and wives are spouses. Mothers and fathers are parents. Sons and daughters are children. Grandparents, grandchildren ... but what about uncles and aunts, or nieces and nephews?

In writing this, I scanned the "Similar Questions" sidebar and found that half of my question is already answered; there is no real term for nieces and nephews. Bummer. But I'm still wondering about aunts and uncles: does anyone know about that?

Solution 1:

The answer to the similar question you mention actually has your answer. No, there is no gender-neutral word for your parents' siblings.

From the answer:

This thread also mentions:

• that there is no encompassing word for aunt/uncle either
• that there is no male/female form of cousin.
• the article "There isn't a word for it":

Solution 2:

My solutions would be "parents' siblings", and "siblings' children". They don't make single words, but do make concise terms.

Solution 3:

The Non-binary Wiki suggests ommer as a gender neutral for aunt/uncle:

ommer ... Non-standard genderqueer term for "aunt/uncle"