They started as same word, but their meanings have drifted apart over time.
Comedian ISMO on what separates a boot from a trunk
Why don't they call it the Merriam-Webster comma?
Is 'alright' all right?
Comedian ISMO on the complexities of the word 'tip'
Comedian ISMO tries to figure out 'one' and 'two'
How an ancient philosophical movement devoted to the pursuit of virtue came to describe eye-rolling criticism.