An archaic or dialectal term for ardor or burning passion; a variant spelling of ardor.
Variant or corruption of 'ardor/ardour,' possibly influenced by Old French 'ardure' meaning 'burning.' This spelling appears in Middle English texts and early modern English but has largely been replaced by standardized 'ardor' or 'ardour.'
The spelling 'ardure' is like watching English try different ways to spell a word before settling on one—it shows how messy English spelling was before dictionaries standardized everything in the 1700s.
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