They started as same word, but their meanings have drifted apart over time.
A simple way to keep them apart. (Most of the time.)
Head, shoulders, metaphors, and toes
'Poets laureate'? 'Court-martials'? The curious history of postpositive adjectives in English.
And how did it get that name?
Why does it sound strange to say 'funner' or 'funnest?'
How to 'amuse-bouche' without begging pardon for your French