Meaning and origin unknown.
---d...tat( ) is not necessarily proper name or not the only element of the name, as there is a lacuna of about 8 letters after the personal pronoun ⲁⲛⲟⲕ in the preceding line. It could be, e.g., the person's title, but no offices abbreviated in tat( ) is known from Nubia. Jakobielski 1970, pp. 33–36, suggested to reconstruct [.]ⲇ[ⲟⲝⲟ]ⲧⲁ⸌ⲧ⸍, but in proper Coptic this would require a nominal complement, wheras here the abbreviation for 'son' follows immediately.