Seven

Baby B Clue #4


This symbol looks like an auricle and is derived from an ancient abjad.

This will give you a one letter clue.

UPDATE:

No one has guessed it yet. The symbol looks like an ear, but that doesn't necessarily mean the symbol looks like the letter it represents.
The babies each have one first name and one middle name.
Find the abjad with a symbol that looks like an ear and what it represents is the answer to the clue :)
The abjad you are looking for contains no vowels.