They started as same word, but their meanings have drifted apart over time.
Thawing one of the mysteries of English
Often used, often confused. Here's some guidance and insight.
An old-fashioned rule we can no longer put up with.
'Mischievous,' 'nuclear,' and other words to pronounce with caution.
Editor Emily Brewster clarifies the difference.
How the irregular 'snuck' sneaked into the dictionary