Meaning: perhaps a variant of the name Yishai, meaning 'gift'
Inspiration: Old Testament figure, father of King David.
If the reading ⲉⲓⲇⲥⲥⲉ, pronounced most probably /idisse/, is correct, we would most probably be dealing with a local Nubian name deriving from ⲉⲓⲇ-, 'to send?', or ⲉⲇ̄-, 'sign'.
Meaning: If this is a Nubian name, it perhaps derievs from ⲉⲓⲇ-, 'sign' + -ⲁ = 'the sign'.
Alternatively, it may be interpreted as a variant of Arabic names Īdā‘ or Ḥayd,
Meaning: probably from ⲉⲛ-, 'mother' + -ⲁ (vocative?) + ⲕⲓⲥⲥ- < ⲕⲟⲩⲥ-, 'loosen' + -ⲗ = 'mother loosener'. If the analysis is correct, this may be a reference to Mother Mary as the loosener of labours of childbirth.