
Latin word *superanus comes from Latin super, Latin -anus
super (Latin)
Accusative [of measure] above, beyond, over, in addition to. Accusative [of place] above, beyond. Accusative [of place] above, on the top of, upon.
-anus (Latin)
Of or pertaining to; -ian; usually indicates a relationship of position, possession, or origin.
*superanus (Latin)
(Vulgar Latin) sovereign, chief (Vulgar Latin) sovereign, chief, lord, ruler, etc.