Three words that are fun to say

frangible \FRAN-juh-buhl\, adjective:

Capable of being broken; brittle; fragile; easily broken.

Frangible ultimately derives from Latin frangere, "to break."

tarradiddle \tair-uh-DID-uhl\, noun;
also taradiddle:

1. A petty falsehood; a fib.
2. Pretentious nonsense.

Tarradiddle is of unknown origin.

effulgence \ ih-FULL-junss\ noun

radiant splendor : brilliance

Effulgence derives from the Latin verb "fulgēre," which means "to shine."