ogive
noun
ˈō-ˌjīv 
1
a
: a diagonal arch or rib across a Gothic vault
b
: a pointed arch
2
: a graph of a cumulative distribution function or a cumulative frequency distribution
3
: ogee sense 1
Word History
Etymology
Middle English oggif stone comprising an arch, from Middle French augive, ogive diagonal arch
First Known Use
13th century, in the meaning defined at sense 1a