Is it an entangled rhyme?
Here is the alphabetization of your spelling words:
1. abridgment
2. academy
3. accompaniment
4. bankruptcy
5. bazaar
6. becoming
7. catalog
8. desperate
9. emphasize
10. foreigner
11. granddaughter
12. humorous
13. icing
14. judgement
15. knowledge
It is a myth because no one knows anything about it.