Gyps is a genus of Old World vultures whose members are sometimes known as griffon vultures.

1/ Indian vulture or long-billed vulture (Kền kền Ấn Độ, Gyps indicus)
The genus name is from Ancient Greek gups meaning "vulture" and the species name is Neo-Latin indicus from the Ancient Greek "indikos" meaning "Indian".

2/ White-rumped vulture (Kền kền măng gan, Gyps bengalensis)

Accipitridae from Latin accipiter/accipitri- "hawk".
accipitrinus Latin accipitrinus hawk-like (accipiter: hawk).
"-gyps" comes from the Greek word "gyps" or "gups" (meaning "vulture").