quinquesect
/ˈkwɪŋkwɪsɛkt/(also quinquisect) Chiefly Mathematics
verb
[with object] To divide into five equal parts.
Origin
Late 17th century; earliest use found in George Keith (?1638–1716), Quaker schismatic and Church of England clergyman. From classical Latin quīnque five + -sect, after quinquesection.