|The englyn lleddbroest [en-glyn thleth-broyst] is a Welsh verse form. It consists of four-line stanzas containing seven syllables in each line. All lines must rhyme using diphthongs in half-rhymes, i.e., their final consonants agree. Thus, the rhyme scheme is AAAA BBBB, and so on. There are no rules about assonance, consonance, or cross rhymes, but Celtic verse usually includes them.
Bards confront this form and quail.
Choosing diphthongs causes pain;
Aelia's teeth came to naught;
When a cougar's being coy,