By dissimilation of mn to ml, followed by epenthesis of b
chimbley (plural chimbleys)
You can also try words with the phrase CHIMBLEY, words starting with the letters CHIMBLEY, or words ending in the letters CHIMBLEY.
Words… ending with q, starting with q, starting with qa, starting with qo, with two letters, starting with x, starting with j, ending with j,
Some random searches:
ZKPE, IPFU, QAU, XZGKZEF, IFNO, AOEO,