Root word in the obsequious is?

The root word of "obsequious" is sequi, which comes from the Latin word sequor, meaning "to follow".

Here's the breakdown:

* Ob-: A prefix meaning "toward" or "against".

* Sequi: The root meaning "to follow".

* -ous: A suffix meaning "full of" or "characterized by".

So, obsequious literally means "full of following" or "excessively eager to please". This meaning is reflected in the definition of the word, which describes someone who is servile and fawning in a way that is flattering or trying to win favor.