Roman emperor giving a month to us (8)

I believe the answer is:
augustus
'roman emperor' is the definition.
'augustus' can be an answer for 'emperor' (Augustus is an example). I'm not certain of the 'roman' bit.
'giving a month to us' is the wordplay.
'giving' says to put letters next to each other.
'a month' becomes 'August' (August is an example).
'august'+'us' is 'AUGUSTUS'.
Can you help me to learn more?
(Other definitions for augustus that I've seen before include "old ruler" , "The first Roman emperor - month named after him" , "head for Rome" , "one whose name was John?" , "Successor to Julius Caesar" .)
