They started as same word, but their meanings have drifted apart over time.
Head, shoulders, metaphors, and toes
How to remember which is which
Comedian ISMO tries to figure out 'one' and 'two'
There, there. We'll sort it out.
'Mischievous,' 'nuclear,' and other words to pronounce with caution.
Soop, wimmen, and headake did not make the cut