from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A word or phrase whose referents form a set including as a subset the referents of a subordinate term.
from the GNU version of the Collaborative International Dictionary of English
- n. a word that is more generic or more abstract than a given word; a word designating a class of which the given word is a member. Inverse of subtype and hyponym.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a word that is more generic than a given word
A friend has a hypernym for niece-or-nephew: "nibling".
Actually it looks like you can use perpetuate in that context, meaning to uphold, the hypernym of perpetuate.