What does coffēinum mean in Latin?

coffēinum, a noun, means “caffeine”.

What is the genitive of coffēinum?

The genitive singular is coffēinī. coffēinum is neuter, second declension.

In classical Latin, [kɔfˈfeː.ɪ.nũː]; in ecclesiastical (church) Latin, [kofˈfɛː.i.num].

noun · neutersecond declension

coffēinum n (genitive coffēinī)

Classical[kɔfˈfeː.ɪ.nũː]Ecclesiastical[kofˈfɛː.i.num]

New Latincaffeine
Ad hanc ultimam Alcaloideorum classem, amarorum scilicet non venenatorum, pertinent, praeter principum Angusturinum ex Cortice Angusturae, Gentianinum ex Radice Gentianae luteae, Coffeinum ex fabis Coffeae etc., Cinchoninum et Chininum,[…]1828, Dissertatio Medica Inauguralis, de Cinchonino, Chinino Eorumque Salibus, Inprimis Sulphate Chinini, Pharmaceutica ac Therapeutica Ratione Consideratis, page 3:
Cofedon(Polfa) tbl: aminophenazonum 100mg, phenacetinum 150mg, coffeinum 50mg, luminalum 15mg (M01B, N02BB) (PL)1997, Niels F. Muller, Rudolf P. Dessing, editors, European Drug Index, 4th edition, →ISBN, page 284:

Descendants