'Poets laureate'? 'Court-martials'? The curious history of postpositive adjectives in English.
Or both? Or neither?
How to remember which is which
How to 'amuse-bouche' without begging pardon for your French
And how did it get that name?
A simple way to keep them apart. (Most of the time.)
Many of today's grammar rules can be traced to the opinions of one 18th century writer.