THAT I can understand.
How did Allah become separate from illah (or illaha)?
And I completely agree about the heretical faction of Presbyterians.
Most of these arguments do not take into account the differences in alphabets and actual pronunciations.
For example, an ‘ah’ sound in English may be the letter aleph in Hebrew, or it may be how the placeholder vav is approximately pronounced in the context of a Hebrew word.
Depending on the letters and their native pronunciation, words that look similar when transliterated can have very different meanings.
Arabic and Hebrew are from the same language family. Think of French and Spanish and Italian from the Romance language family. Words can be kind of similar, but be very different in spelling and exact meaning.