I'm sorry I don't have a Syriac keyboard to type the lettering for you, but you should be able to do this yourself. In Aramaic, the word for father is transliterated as ABA (with just one B), the same as I believe in Hebrew. So just think of it as the same word, but different script or font.
Scroll down to the Estrangelo script, and just string together the letters alap-beith-alap. And since the word is spelled the same way whether you write from left to right or right to left, it won't matter, but Syriac, like Hebrew, is written from right to left.