नित्यो नित्योत्पादिको लाभो लाभोत्पादिक इति व्ययः ॥ कZ_०२.६.२३ ॥
nityo nityotpādiko lābho lābhotpādika iti vyayaḥ
Income is of two kinds: (i) nitya—regular/recurring; and (ii) nityotpādika—income that produces (or generates) regular income. Expenditure is that which produces profit (lābhotpādika).
Nitya is the recurring flow itself; nityotpādika refers to the source or activity that generates a recurring flow.
State spending should be evaluated and prioritized by its capacity to generate returns (profit/revenue), not merely by outlay.