What does the prefix ichthyo mean?

The prefix "ichthyo" comes from the Greek word "ἰχθύς" (ikhthýs), which means fish.

Therefore, "ichthyo" is used as a prefix in words related to fish, such as:

* Ichthyology: The study of fish.

* Ichthyosaurus: A genus of extinct marine reptiles.

* Ichthyofauna: The fish of a particular region or time period.