If you noticed the word "leo", you'll know this animal is the lion for sure. The word itself is derived from the Latin "leo" and the Ancient Greek "leon". The word Phantera, the genus which consist of other mammalian big predator (tiger, leopard, etc.) is from the Greek word phanter: The Greek pan-, meaning "all", and thēr, meaning "prey" bears the meaning of "predator of all animals".