Titanian vs elephantic

Titanian

adj

Of the Titans
Of the faerie queen Titania
Of Titania, the largest moon of Uranus.
Of Titan, the largest moon of Saturn.

noun

An inhabitant of Titan (the Saturnian moon) or of Titania

elephantic

adj

Of or relating to elephants
gigantic; massive
Having elephantiasis

How often have the words Titanian and elephantic occurred in a corpus of books? (source: Google Ngram Viewer )