Iatrus
Iatrus (in the Peut. Tab. IANTRUS), a river traversing the central part of Moesia. It has its sources in Mount Haemus and, having in its course to the north received the waters of several tributaries, falls into the Danube close by the town of Iatra. (Plin. Nat. 3.29, where the common reading is Ieterus; Jornand. Get. 18; Geogr. Rav. 4.7.) It is probably the same as the Athrys (Ἄθρυς) mentioned by Herodotus (4.49). Its modern name is Iantra. [L.S.
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.