costrel

noun

cos·​trel ˈkä-strəl 

: a flat usually earthenware container for liquids with loops through which a belt or cord may be passed for easy carrying

called also pilgrim bottle

Word History

Etymology

Middle English, from Medieval Latin & Anglo-French; Medieval Latin costrellus, from Anglo-French *costrel, from costere side, from coste rib, side — more at coast

First Known Use

14th century, in the meaning defined above