underspend

verb (used with object), spent, spend·ing.

1. to pay out, disburse, or expend; dispose of (money, wealth, resources, etc.): resisting the temptation to spend one’s money.
2. to employ (labor, thought, words, time, etc.), as on some object or in some proceeding: Don’t spend much time on it.
3. to pass (time) in a particular manner, place, etc.: We spent a few days in Baltimore.
4. to use up, consume, or exhaust: The storm had spent its fury.
5. to give (one’s blood, life, etc.) for some cause.

verb (used without object), spent, spend·ing.

6. to spend money, energy, time, etc.
7. Obsolete. to be consumed or exhausted.

verb -spends, -spending or -spent

1. to spend less than (one can afford or is allocated)

noun (ˈʌndəˌspɛnd)

2. the amount by which someone or something is underspent

verb spends, spending or spent

1. to pay out (money, wealth, etc)
2. (tr) to concentrate (time, effort, thought, etc) upon an object, activity, etc
3. (tr) to pass (time) in a specific way, activity, place, etc
4. (tr) to use up completelythe hurricane spent its force
5. (tr) to give up (one’s blood, life, etc) in a cause
6. (intr) obsolete to be used up or exhausted
7. spend a penny British informal to urinate

noun

8. an amount of money spent, esp regularly, or allocated to be spent

v.“to pay out or away” (money or wealth), Old English -spendan (in forspendan “use up”), from Latin expendere “to weigh out money, pay down” (see expend). A general Germanic borrowing (cf. Old High German spendon, German and Middle Dutch spenden, Old Norse spenna). In reference to labor, thoughts, time, etc., attested from c.1300. see pocket (spending) money.