Livelong vs. Lifelong: What's the Difference?

Livelong and Lifelong Definitions
Livelong
Complete; whole
The livelong day.
Lifelong
Continuing for a lifetime.
Livelong
Total, complete, whole
I've been workin' on the railroad, all the livelong day.
Lifelong
Extending for the entire duration of life.
They were lifelong friends; they met in elementary school and ended their lives in the same rest home.
Livelong
(obsolete) lasting; durable.
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Lifelong
Lasting or continuing through life.
Livelong
Orpine (Sedum telephium)
Lifelong
Continuing through life;
A lifelong friend
From lifelong habit
His lifelong study of Greek art
Livelong
Whole; entire; long in passing; - used of time, as day or night, in adverbial phrases, and usually with a sense of tediousness.
The obscure birdClamored the livelong night.
How could she sit the livelong day,Yet never ask us once to play?
Livelong
Lasting; durable.
Thou hast built thyself a livelong monument.
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Livelong
Perennial northern temperate plant with toothed leaves and heads of small purplish-white flowers
Livelong
(of time) constituting the full extent or duration;
All the livelong day