They started as same word, but their meanings have drifted apart over time.
You all would not have guessed some of these
Often used, often confused. Here's some guidance and insight.
Soop, wimmen, and headake did not make the cut
A simple way to keep them apart. (Most of the time.)
Is it all the same anyway?
'Poets laureate'? 'Court-martials'? The curious history of postpositive adjectives in English.