Newly

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Old English nīwe, nēowe, of Germanic origin; related to Dutch nieuw and German neu, from an Indo-European root shared by Sanskrit nava, Latin novus, and Greek neos ‘new’.

wiktionary

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From Middle English newly, newely, neweliche, from Old English nīewlīċe(“newly”), equivalent to new +‎ -ly. Compare Dutch nieuwelijks, German neulich, Danish nylig, Icelandic nýlega. More at new, -ly.

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newly (adv.)

Old English niwlice "lately, recently;" see new + -ly (2). Similar formation in German neulich, Danish nylig, Swedish nyligen.