"Variant of Azarias"
The name Azarius is commonly a male name from the "Latin" origin.
Azarius is a Latinized form of Azarias, the Greek form of the Hebrew name Azariah. The ending -us is the Latin nominative suffix, the same pattern seen in Elias alongside Elijah and in Zacharias alongside Zechariah. The name entered United States birth records as a given name only in 2000, but the form itself rests on that older Greek and Latin spelling rather than being a modern invention.
Azarias means "to help".
The pronunciation of Azarius is az-uh-RYE-us.