Douglas Harper's Etymology Dictionary
1670s, "an instance of finiteness," from French finité, from fini, past participle of finir "to bound," from Latin finire (see finite).
Wiktionary
n. 1 (context rare uncountable English) The state or characteristic of being limited in number or scope. 2 (context rare countable English) Something which is limited in number or scope.
Usage examples of "finity".
A Union carrier might not want to swallow a pill Finity dispensed, fearing bombs or biologics.
Some clairvoyants had special af finities: some sensed events revolving around fire, water, or wind.
JR, in direct charge of the juniors, didn't want to let the junior-juniors unsupervised into any establishment without knowing what the place was like-or (figuring that even very young Finity personnel had reflexes other people might lack) whether there were liabilities to other users.
The new guessing game was not what Finity carried but what Finity wanted or needed.
He, Lyra, and Bucklin owned handhelds, with all the access into Finity systems that went with it.
And, thank God, Finity had been able to make departure on the schedule they'd finally been able to set, while all Pell Station had to be buzzing with speculation regarding the delay that kept Finity in port-speculation that was no longer speculation as the news filtered through the station legal department and the rumor mill that Finity was recovering a long-lost crew member.