Many of today's grammar rules can be traced to the opinions of one 18th century writer.
Comedian ISMO on the complexities of the word 'tip'
How 'literally' can mean "figuratively"
An old-fashioned rule we can no longer put up with.
And who put it there, anyway?
We're intent on clearing it up
They started as same word, but their meanings have drifted apart over time.