Hint #1
The nine-letters represent two separate words that can be put together to form a single compound word.
Hint #2
Here are some words that can be made out of the nine letters.

gloom, hint, homing, igloo, light, logo, loom, lotion, might, month, moon, night, omit, thin, thing, toon

Hint #3
The two separated words that make up the compound word are four and five letters long.