peakedness1
/ˈpiːktnɪs/ /ˈpiːkɪdnɪs/noun
1The quality or condition of having or terminating in a peak or point. Now rare.
2 Statistics. The extent to which distribution, as expressed in a graph, is concentrated in a peak or series of peaks.
Origin
Mid 19th century; earliest use found in John P. Kennedy (1795–1870), novelist and politician. From peaked + -ness.
peakedness2
/ˈpiːktnɪs/ /ˈpiːkɪdnɪs/noun
Pinched or sickly appearance; the state of being in poor health.
Origin
Late 19th century; earliest use found in Joel Chandler Harris (1848–1908). From peaked + -ness.