• Webster's Revised Unabridged Dictionary
    • v. i Smilt To melt.
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Century Dictionary and Cyclopedia
    • smilt An obsolete form of smelt.
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In literature:

He smilt a sickly smile, and said I'd already been wus than two fathers to him.
"The Complete Works of Artemus Ward" by Charles Farrar Browne (AKA Artemus Ward)
But what did he mean by showing his teeth to her when he smilt?
"The Sapphire Cross" by George Manville Fenn