They started as same word, but their meanings have drifted apart over time.
The awkward case of 'his or her'
The best way to find information in the dictionary
Good news for those who feel stuffy saying 'whom.'
Or both? Or neither?
'Poets laureate'? 'Court-martials'? The curious history of postpositive adjectives in English.
The most common vowel sound in English causes many spelling problems.