The Collaborative International Dictionary
Summity
Summity \Sum"mit*y\, n. [L. summitas, fr. summus highest: cf. F. sommit['e]. See Sum, n.]
The height or top of anything. [Obs.]
--Swift.The utmost degree; perfection. [Obs.]
--Hallywell.
Wiktionary
summity
n. 1 (context obsolete English) The height or top of anything. 2 (context obsolete English) The utmost degree; perfection.