The name that is transliterated as “Addi” in English means “my witness,” “adorned,” “ornament.” (Source: Cornwall / Smith 1997 )
In Libras (Brazilian Sign Language) it is translated with a sign that combines “king” and “superior.” One of the original meanings of “Addi” is “ornament,” which is why “king” and “superior” are being used. (Source: Missão Kophós )
“Addi” in Libras (source )
For more information on translations of proper names with sign language see Sign Language Bible Translations Have Something to Say to Hearing Christians .