Yes, of course. Arabic did not come out of nowhere. It evolved, just like all other languages. And as such, it has retained some artefacts that linguists can study to determine its origins.
For example, the name Amr is spelled عمرو, and this practice was common in Nabataean Aramaic, which added a و to given names. Arabic retained this practice only for the name عمرو to differentiate it from عمر, but it’s a silent و.
It’s also important to remember that Arabic went through a modernization process in the 19th century. This is where Modern Standard Arabic comes from. MSA accepted many foreign (mostly English) words into the language and found ways to make them fit into the morphology and grammar of Arabic.
Additionally, Arabic did not have punctuation marks till the 19th century, when the punctuation system was developed by Ahmad Zaki Pasha, who was one of the leaders of the Arabic renaissance (Al-Nahda).