7 Sorrows,
I learned speaking them (Arabic and Aramaic) as I was growing up in my family, in my interactions with relatives, and in the church and community.
I learned basic Arabic reading and writing in elementary school in Iraq. I can still remember being one of the very few Christians in a class full of Muslims, and I remember when I was in 5th grade or so, I used to have very light debates or discussions with my fellow Muslims on the divinity of Christ! Nothing major, just how kids would argue with one another. It was pretty interesting times!
I then came to the US, a pre-teen, and picked up English, and which became my daily language as I grew up with it. I prefer speaking English with my siblings now and in general, but I tried not to abandon learning more about Arabic and Aramaic. Especially with our cherished Aramaic, in that while I understood the language by simply hearing my parents and relatives converse with one another, and with my interaction with the nuns/deacons/priests at church, I also took a couple of years of study with my priest, in order to learn how to read and write it.
I’m still not fluent in both Arabic and Aramaic, but I continue to learn them, and learn the more intricate and specific details that are beyond just the basic understanding. As far as the history of the languages, I simply study them online, in the books that I have about them, or when I discuss the topic with my people.
Thanks ferdie, it is one of the great treasures in Christianity, along with Greek, Latin, and the other venerable languages.
God bless,
Rony