Eucalyptus
来自Big Physics
modern Latin, from Greek eu ‘well’ + kaluptos ‘covered’ (from kaluptein ‘to cover’), because the unopened flower is protected by a cap.
wiktionary
From French eucalyptus.
etymonline
eucalyptus (n.)
evergreen genus of Australia, 1789, from Modern Latin, coined 1788 by French botanist Charles Louis L'héritier de Brutelle (1746-1800) from Greek eu "well" (see eu-) + kalyptos "covered" (from PIE root *kel- (1) "to cover, conceal, save"); so called for the covering on the bud.
