newest

From Middle English newest, from Old English nīwost, from Proto-Germanic *niwistaz, from Proto-Indo-European *néwisth₂os, superlative of *néwos/*néwyos (whence new). Cognate with Scots newest, Dutch nieuwst, German neueste, neuste, Icelandic nýjastur, Gothic 𐌽𐌹𐌿𐌾𐌹𐍃𐍄𐍃 (niujists), Ashkun nustári (“before”), Kamkata-viri nüštë́ř (“before”), Waigali nüst (“before”), Vedic Sanskrit नविष्ठ (náviṣṭha).

• (Received Pronunciation) IPA^(key): /ˈnjuːɪst/
• (General American, Canada) IPA^(key): /ˈn(j)uɪst/
• (General Australian, New Zealand) IPA^(key): /ˈnjʉːɪst/

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newest

1. Superlative form of new: most new.
   • 1958 September, C. Alan Cook, “Johannesburg's Fourth Station”, in Railway Magazine, page 640:

     This was definitely to be the station, one which would cater for all needs for years to come. But it was evident within the next few years that Johannesburg would once again outgrow its newest station.

• Wentes, newset, tweens, westen