raⁿˈsō noun
( plural rin·ceaux -ō(z))
Etymology: French, from Middle French rainsel branch, from (assumed) Vulgar Latin ramuscellus, alteration of Late Latin ramusculus small branch, diminutive of ramus branch — more at ramify
: an ornamental motif consisting essentially of a sinuous and branching scroll elaborated with leaves and other natural forms (as derived from the acanthus)