nounhistorical, dialect British
In plural form (formerly also in singular form). The game of nine men's morris.
Sometimes with preceding word or words indicating the number and type of counters used, as "nine men's merels", "ninepenny merels", etc.
Late Middle English (in an earlier sense). From Middle French merele, merelle, feminine (late 11th cent in Old French; French marelle, and marel, merel, masculine, both probably from an unattested Romance base *marr- stone, rock.