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prob

Latin

to test, to approve, to disapprove

Variants:probprobeprobat
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About This Root

From Latin probāre (to test, approve, prove), from probus (good, worthy). Spans testing and approval: prove (establish truth), probe (investigate), probable (likely true), probation (period of testing), probity (moral integrity). The seemingly unrelated improve shares this root — originally meaning 'to turn to profit' via Anglo-French emprouwer.

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Associated Words · 14

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probably

very likely; almost certainly

prove

to show that something is true

approve

To officially sanction; to have a positive opinion of

probability

The likelihood of something happening; a mathematical measure of chance

probe

To investigate thoroughly; a device or instrument used to explore or gather information

probable

Likely to be true or to happen

probation

A trial period for a new employee; a legal sentence allowing offenders to remain free under supervision

improbable

Not likely to be true or to happen

disprove

To prove something is false or incorrect; to refute

approbation

Official approval or praise

probity

Strong moral integrity and honesty

reprove

To gently rebuke or criticize someone

reproof

A rebuke or expression of criticism

reprobate

An immoral or sinful person; to strongly condemn