Words: festoon [MW]

Function: noun
Etymology: French feston, from Italian festone, from festa festival, from Latin -- more at FEAST
1 : a decorative chain or strip hanging between two points
2 : a carved, molded, or painted ornament representing a decorative chain

Function: transitive verb
1 : to hang or form festoons on
2 : to shape into festoons
3 : DECORATE, ADORN; also : COVER