They started as same word, but their meanings have drifted apart over time.
Or both? Or neither?
The landmark edition that transformed the way dictionaries are made.
Some practical guidance, and interesting history, about a common mistake.
'Poets laureate'? 'Court-martials'? The curious history of postpositive adjectives in English.
Is it all the same anyway?
An old-fashioned rule we can no longer put up with.
