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)

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

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