Lasting for a long duration; long-lasting or continuous over an extended period of time.
From Latin 'diuturnalis,' derived from 'diutinus' (long-lasting), which comes from 'diu' (for a long time). This word appeared in English primarily in literary and formal contexts from the 16th century onward.
While 'diuturnal' sounds like it means 'daily' (because of 'diurn'), it actually means 'long-lasting'—the similar-sounding words have completely different meanings! Latin 'diu' (long time) created this word, not 'dies' (day).
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