[HPsquared]

My favourite is the "velocity of money" in macroeconomics. Shocking misuse of the word!

[aqme28]

That’s an entirely separate concept from dev velocity. FWIW I like the name in economics, and can’t immediately think of a much better one.

[HPsquared]

Frequency is a better term. The dimensions are 1/Time.

[aqme28]

If you define distance (wrt money) as the number of people it’s passed through, then it has the appropriate units.

[HPsquared]

I prefer to think of it as the reciprocal of "residence time", that is how long the money spends at rest in a given account (on average).