(MOR-uh) noun
Mora: The unit of time equivalent to the ordinary or normal short sound or syllable. <Latin, delay, hence, space of time.>
“I was only able to identify a small number of cases where the number of mora on each section of the proverb is identical.” Tae-Sang Jang, A Poetic Structure in Hausa Proverbs Relevancy, Research in African Literatures, Apr 15, 1999.