Rad

• Radd, Raad (optionally for the respective pronunciations)

From Middle High German rat, from Old High German, from Proto-West Germanic *raþ, from Proto-Germanic *raþą.

• IPA^(key): /ʀat/, /ʀaːt/
• In Moselle Franconian mostly long. In Ripuarian both forms and often with a distinction: common case et Rad [ət ˈʀat] vs. dative dem Rad [dəm ˈʀaːt].

Rad n (plural Räder or Rader or Rädder or Radder, diminutive Rädche)

1. wheel
2. bike

• The vowel length of the plural does not necessarily agree with that of the singular. Depending on the dialect all combinations are possible.

From Middle High German rat, from Old High German rad, from Proto-West Germanic *raþ, from Proto-Germanic *raþą, from Proto-Indo-European *Hret- (“to roll”).

Related to Swedish ratt (“steering wheel”) and Finnish ratti (“steering wheel”). Also related to English rotary and Spanish rueda (“wheel”), which descended from the same PIE root through Latin rota.

• IPA^(key): /ʁaːt/ (prescriptive standard; especially southern Germany, Austria, Switzerland)
• IPA^(key): /ʁat/ (predominant in northern and parts of central Germany; but inflected forms with a long vowel)

• Audio (Austria):

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• Audio:

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• Rhymes: -aːt, -at
• Homophone: Rat (according to prescriptive standard)

Rad n (strong, genitive Rades or Rads, plural Räder, diminutive Rädchen n)

1. wheel
2. (gymnastics) cartwheel
3. Clipping of Fahrrad; bicycle

Borrowed from English rad.

Rad n (strong, genitive Rads or Rad, plural Rads)

1. (physics) rad (non-SI unit of absorbed dose of radiation)

   Coordinate term: Gray

• “Rad” in Duden online
• “Rad” in Duden online
• “Rad” in Uni Leipzig: Wortschatz-Lexikon
• “Rad” in Digitales Wörterbuch der deutschen Sprache
• “Rad” in Deutsches Wörterbuch von Jacob und Wilhelm Grimm, 16 vols., Leipzig 1854–1961.
• Friedrich Kluge (1883) “Rad”, in John Francis Davis, transl., Etymological Dictionary of the German Language, published 1891

From Middle High German rat, from Old High German rad, from Proto-West Germanic *raþ, from Proto-Germanic *raþą. Cognate with German Rad, Dutch rad.

• IPA^(key): /raːt/, [ʀaːt]
• Rhymes: -aːt
• Homophone: Rat

Rad n (plural Rieder, diminutive Riedchen)

1. wheel