What does the prefix aphasia mean?

The prefix "a-" in "aphasia" means "without" or "lack of," while "phasia" comes from the Greek Word "phasis," meaning "speech" or "to speak." Therefore, "aphasia" refers to a condition characterized by the loss or impairment of the ability to communicate verbally or through writing, often due to brain injury or neurological issues. It encompasses various types of speech and language difficulties.