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 .