Lasting for an age or many ages; continuing for an indefinitely long period of time; ancient and enduring.
From 'age' (from Old French 'aage' and Latin 'aetas') combined with 'long' (from Old English 'lang'). A poetic or archaic compound formation meaning 'lasting as long as an age.'
While not common in modern speech, 'agelong' captures something Shakespeare and Milton loved—the sense that something has endured since ancient times, making it feel more epic than just saying 'very old' or 'long-lasting.'
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