The Collaborative International Dictionary
Incurvity
Incurvity \In*cur"vi*ty\ ([i^]n*k[^u]"v[i^]*t[y^]), n. [From L.
incurvus bent. See Incurvate.]
A state of being bent or curved; incurvation; a bending
inwards.
--Sir T. Browne.
Wiktionary
incurvity
n. (context obsolete English) The quality of being bent inwards.