erlinger
To start a sentence strong but in one's pursuit of the most appropriate words, linger for way too long, frequently to the point of not finishing it. Speakers who erlinger are typically obsessed with sounding eloquent or fluent but ironically this very obsession prevents them from attaining their goal.
He wanted to talk about the ridiculousness of his assignment but I never actually learned what was so bad about it because he erlingered halfway through his rant.