1. At the proper time
   "she was duly apprised of the raise"
   - punctually 
2. In a due, fit, or becoming manner; as it ought to be; properly

See also: due

• genus Euphorbia
• genus Euphractus
• genus Euplectella
• genus Euproctis
• genus Eurotium
• genus Euryale
• genus Eustoma
• genus Eutamias
• genus Euterpe
• genus Euthynnus
• genus Evernia
• genus Exacum
• genus Exaeretodon
• genus Fabiana
• genus Fagopyrum
• genus Fagus
• genus Falcatifolium
• genus Falco
• genus Fasciola
• genus Fasciolopsis
• genus Feijoa
• genus Felicia
• genus Felis
• genus Ferocactus
• genus Festuca