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See also: Klug





From Middle High German kluoc, which was borrowed via the Lower Rhineland from Middle Low German klōk and Middle Dutch cloec, from Proto-Germanic *klōkaz. Compare Old Norse klókr, and dialectal Dutch kloek.

In Upper German dialects, the final [k]-sound after a long vowel was naturally interpreted as underlying /ɡ/. This form then also spread back northwards, though some northern Central German dialects (like Ripuarian) retained /k/, as did Low German.


  • IPA(key): /kluːk/ (standard)
  • IPA(key): /kluːx/ (northern and central Germany, but rarer than otherwise because of the dialectal forms in -k)
  • Audio:(file)
  • Rhymes: -uːk



klug (strong nominative masculine singular kluger, comparative klüger, superlative am klügsten)

  1. intelligent, prudent, wise, smart



Further reading

  • klug” in Digitales Wörterbuch der deutschen Sprache
  • klug” in Uni Leipzig: Wortschatz-Lexikon
  • klug” in Duden online