Cinnyris is a genus of sunbirds. Its members are sometimes included in Nectarinia.
The name Cinnyris is from the Ancient Greek kinnyris, an unknown small bird mentioned by Hesychius of Alexandria.

1/ Purple sunbird (Hút mật họng đen, Cinnyris asiaticus) 

2/ Garden sunbird (Hút mật họng tím, Cinnyris jugularis)
previously known as the olive-backed sunbird.
The specific name jugularis is Medieval Latin for 'of the throat'.