What is the origin of word colloquial?

The word "colloquial" originates from the Latin word "colloquium," meaning "conversation" or "conference."

Here's a breakdown of its etymology:

* Latin: *colloquium* (conversation, conference)

* Medieval Latin: *colloquialis* (relating to conversation)

* Middle English: *colloquial* (adopted from Medieval Latin)

Therefore, the word "colloquial" literally means "relating to conversation," and it's used to describe words, phrases, or expressions that are characteristic of informal, everyday speech.