lunes
plural noun
ˈlünz 
: fits of lunacy
Example Sentences
Recent Examples on the Web Sus probabilidades cayeron a cero a partir de las 2 p.m. del lunes. 
Cindy Krischer Goodman, sun-sentinel.com, 10 Aug. 2021
Cindy Krischer Goodman, sun-sentinel.com, 10 Aug. 2021 Word History
Etymology
French, plural of lune crazy whim, from Middle French, moon, crazy whim, from Latin luna
First Known Use
1601, in the meaning defined above