A Dictionary of Jewish Babylonian Aramaic

Title: A Dictionary of Jewish Babylonian Aramaic
Creator: Michael Sokoloff
Date: 2002 AD
Description: In this dictionary, it is stated that the Hebrew word אַרָמִי, translated as Aramean, is an adjective meaning of 'a Syriac.' It appears in Genesis 25:20 and is found in Targum Aramaic (TA) and Syriac (ܐܳܪ̈ܳܡܳܝܶܐ, lit. Oromoye, meaning Arameans).

The distinction between this entry and the previous one, which refers to pagans, is based on vocalization traditions in TA and Syriac.

So, this dictionary clearly states that Aramean is synonymous with Syriac and is differentiated from pagan in both the Syriac language and Targum Aramaic.
Language: Hebrew & English
Publisher: A Dictionary of Jewish Babylonian Aramaic of the Talmudic and Geonic Periods, p. 169; https://archive.org/