Definition of pro- in English:

pro-1

prefix

  • 1Favouring; supporting: pro-choice
  • 2Acting as a substitute or deputy for: proconsul
  • 3Denoting motion forwards, out, or away: proceed propel prostrate

Origin

from Latin pro 'in front of, on behalf of, instead of, on account of'.

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Word of the day maelstrom
Pronunciation: ˈmeɪlstrəm
noun
a powerful whirlpool in the sea