OK we are talking here in two Coptic dialects Bohairic and Sahidic
Bnouda Ⲡⲛⲟⲩⲧⲉ is in the Sahidic dialect and means GOD or (The GOD) this word is pronounced Bnoudi Ⲫⲛⲟⲩϯ in the Bohairic Dialect
Bannuodi ⲡⲉⲛⲛⲟⲩϯ is in Bohairic Dialect and it means "Our GOD"
If you have a microphone you can record your voice while pronouncing them just to be sure that you have spelled them correctly
I don't believe then some one would call his son with such names, but those words has no other meanings
and it can not be coincidence
Of course I recommend you NOT to use such names (If you believe in GOD anyway)
But I can provide some similar Coptic alternatives
Ⲡⲁⲡⲛⲟⲩⲧⲉ babnouda means belonging to GOD (Sahidic Dialect)
Ϣⲉⲛⲟⲩⲧⲉ Shanouda means son of GOD (Sahidic Dialect)
Ϣⲉⲛⲟⲩϯ Shanoudi means son of GOD (Bohairic Dialect)
Amazingly the names you gave to us are pronounced in its Original Coptic pronunciation before it get altered
http://kame.danacbe.com/index.php?topic=2.0those names are valuable resources to us, do you have more names that you think it is in COPTIC?