Other forms: quantified, quantifying, quantifies
To quantify is to express something as a number. Quantify the risk, hard to quantify, quantify the benefit.
Doing it forces you to say what you mean, which is the argument for it; the danger is that what cannot be counted gets left out of the decision. Hard to quantify is the standard admission. Note quantity, quantitative; and that the Latin quantus means how much.
1verbquantifyTo express something as a number.
“It's hard to quantify how much the new park has improved people's lives.”
quantify is a measuring.
Medieval Latin quantificare comes from quantus, how much, plus facere, to make. Quantity and quantum come from the same how much.
Medieval Latin
quantificō
English, today
quantify
From Medieval Latin quantificō, from la + quantus. From Medieval Latin quantifico (introduced by Sir William Hamilton in logic).
Etymology from Wiktionary, CC BY-SA