* Sesquipedalian: This word literally means "a foot and a half" and refers to a long word, but it can also describe someone who uses long words.
* Logophile: This term describes someone who loves words in general, not specifically long ones.
* Wordsmith: This term describes someone who enjoys working with words, but doesn't specifically imply a preference for long ones.
You could also use more descriptive phrases like:
* A lover of long words
* Someone who appreciates the beauty of long words
* Someone who uses long words for their effect
Ultimately, the best way to describe someone who loves long words depends on the context and the specific type of love they have for them.