They started as same word, but their meanings have drifted apart over time.
Comedian ISMO on what separates a boot from a trunk
Soop, wimmen, and headake did not make the cut
Head, shoulders, metaphors, and toes
These people needed a computer
Why does it sound strange to say 'funner' or 'funnest?'
How to 'amuse-bouche' without begging pardon for your French