What are some words with as a root word?

You're likely thinking of the root word "as", which means "in the same way" or "to the same degree". It is a little tricky because it's a very short word and doesn't change much in its usage.

Here are some examples where "as" functions as a root word:

* Ascend (to move upwards)

* Ascent (the act of moving upwards)

* Ascertain (to find out for certain)

* Ascribe (to attribute something to a particular cause)

* Assail (to attack violently)

* Assemble (to gather together)

* Assert (to state strongly)

* Assiduous (showing great care and perseverance)

* Assist (to help)

* Associate (to connect with)

Let me know if you'd like more examples!