Does "data" in Cauchy data come before or after the coinage of data in computer science Is the usage of data as in Cauchy data (i.e. initial conditions) borrowed or came before the usage of data in computer science and do both usages mean roughly the same thing (data ~ information)?

The use of "data" in mathematics is quite old. Oxford English Dictionary has a quote from 1645: T. Urquhart Trissotetras 53

> The verticall Angles, according to the diversity of the three Cases being by the foresaid Datas thus obtained.

I would suspect that its use in Latin is much older (as well as the use of the equivalent Greek term). What does Euclid use for what is "given" in a geometric construction?