What happens when you add Ly to words ending with Le?

Adding -Ly to words ending with -Le will make/change the word an adverb.
Able: adjective
Ably: adverb

Capable: adjective
Capably: adverb

Comfortable: adjective
Comfortably: adverb

Horrible: adjective
Horribly: adverb

Idle: adjective
Idly: adverb

Incredible: adjective
Incredibly: adverb

Noble: adjective
Nobly: adverb

Possible: adjective
Possibly: adverb

Subtle: adjective
Subtly: adverb

Whole: adjective
Wholly: adverb