chant
noun
[ tʃɑːnt ]
• a repeated rhythmic phrase, typically one shouted or sung in unison by a crowd.
• "a group of young people set up a chant of ‘Why are we waiting?’"
• a short musical passage in two or more phrases used for singing unmetrical words; a psalm or canticle sung to such music.
chant
verb
• say or shout repeatedly in a sing-song tone.
• "protesters were chanting slogans"
Origin:
late Middle English (in the sense ‘sing’): from Old French chanter ‘sing’, from Latin cantare, frequentative of canere ‘sing’.