Where does “sīrietis” come from?

sīrietis (Latvian) comes from Latvian Sīrija, from Latin Sȳria, from Ancient Greek Συρία, from Ancient Greek Ἀσσυρία, from Akkadian Aššūrāyu, from Akkadian Aššūr — Assur.

sīrietis (Latvian): a Syrian, a Syrian man, a man from Syria or of...