Koffein

See also: koffein

German

Alternative forms

• Coffein (less common)
• Caffein (obsolete)
• Kaffein (obsolete)

Etymology

Initially coined as Kaffein by German chemist Friedlieb Ferdinand Runge (Kaffee +‎ -in), later changed under influence of Latin coffea.

Pronunciation

• IPA^(key): [kɔfeˈiːn], [kɔfeˈʔiːn]

• Audio

  (file)

Noun

Koffein n (strong, genitive Koffeins, no plural)

1. caffeine

   Coordinate term: Tein

Declension

Declension of Koffein [sg-only, neuter, strong]

	singular
	indef.	def.	noun
nominative	ein	das	Koffein
genitive	eines	des	Koffeins
dative	einem	dem	Koffein
accusative	ein	das	Koffein

Further reading

• Koffein on Wikipedia.Wikipedia
• “Koffein” in Duden online