They started as same word, but their meanings have drifted apart over time.
Here's the lowdown on what may be the most confusing pair of words in the English language.
The awkward case of 'his or her'
The story of those iconic illustrations.
A simple trick to keep them separate
Soop, wimmen, and headake did not make the cut
How an ancient philosophical movement devoted to the pursuit of virtue came to describe eye-rolling criticism.