DictionaryRoot: pro-
Latin

pro-

before, forward; on behalf of

Forms

  • pro-
  • por- — An older Latin variant retained in some compounds.

Origin

Reconstructed Proto-Indo-European *pro, ‘before; forward.’

Note

Standing in front of someone can develop into acting on that person’s behalf.

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A hand signs a simple promissory note beside coins and a calendar; exact minimal title 'PROMISE TO PAY', no other legible text.
adjective

promissory

PRAH-mih-sor-ee/prˈɑmʌsˌɔri/

Containing or expressing a promise.

Etymology

The elements meaning 'beforehand' and 'send' combined in a verb that meant both 'send forth' and 'assure beforehand.' Promissory describes something containing that advance assurance, especially a commitment to pay or perform.

Full entry

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