Quartarius
Quartarius a Roman measure of capacity, one-fourth of the sextarius, and consequently a little less than a quarter of a pint imperial. It is also found in the Greek system of liquid measures under the name of τέταρτον.
From William Smith (ed.), Dictionary of Greek and Roman Antiquities. 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.