Origin of the Word Therianthropy

Greek Portmanteau

Greek is one of the world's oldest recorded and living languages, meaning that it is still in use today.  The word Therianthropy is a portmanteau or combining of two Greek words, which then loosely translates as human-animal or animal man. I've come across a few different possible origins for the word Therianthropy.  

One source suggests that the Greek root "thero" and "anthro" were combined. Here we see that "anthro" means human and that "thero" means breast or mammal. Please see the links to the References at the end.

Another source says that the Greek roots "ther" and "anthrop" were used. The Greek root "ther" means "wild animal" and "anthrop" is a Greek root for "human".

Yet another source said that Therianthropy was made up of the Greek word "therion" [θηρίον] which means "wild animal" or "beast" and anthrōpos [ἄνθρωπος] translates to "man".

There is also the Greek word "Therios" for "wildbeast".

Therion happens to be the name that the Greeks gave to the constellation Lupus, or Wolf.