rhythm
noun
[ ˈrɪð(ə)m ]
• a strong, regular repeated pattern of movement or sound.
• "Ruth listened to the rhythm of his breathing"
• the measured flow of words and phrases in verse or prose as determined by the relation of long and short or stressed and unstressed syllables.
• "the rhythm, pattern, and cadence of words"
• a regularly recurring sequence of events or processes.
• "the twice daily rhythms of the tides"
Origin:
mid 16th century (also originally in the sense ‘rhyme’): from French rhythme, or via Latin from Greek rhuthmos (related to rhein ‘to flow’).