analysis situs
noun
analysis si·tus -ˈsī-təs 
-ˈsē-,
-ˌtüs : topology sense 2a(1)
Word History
Etymology
borrowed from New Latin analysis sitūs "analysis of position"
Note: The phrase was used by Gottfried leibniz, as in the paper "De analysi situ," Leibnizens mathematische Schriften, 2. Abteilung, Band I, edited by C.I. Gerhardt (Leibnizen gesammelte Schriften, 3. Folge, 5. Band, Halle, 1858), p. 178.
First Known Use
1875, in the meaning defined above