English

pro-

/ˌpɹəʊ̯-/
agreeing with; supporting; favouring

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    Origin

    Etymology 1

    Derived from Latin prō (“in favor of, on behalf of”).

    Etymology 2

    Learned borrowing from Latin prō- (“forward direction, forward movement”).

    Etymology 3

    Derived from Ancient Greek πρό (pró, “before”).

    From Wiktionary, CC BY-SA 4.0.

    Lineage

    • derivedLatinprō “in favor of, on behalf of”
      • inheritedProto-Italic*prō
        • derivedProto-Indo-European*pró “leading to, toward”
          • partProto-Indo-European*pér
          • partProto-Indo-European*-o
      • derivedOld Frenchporter “carry”
        • inheritedLatinportō “carry”
        • derivedLatinportō “carry”
      • derivedAncient Greekθαλλός “green branch”
        • derivedProto-Indo-European*dʰelh₁- “to bloom”
    • learned borrowingLatinprō- “from, in the place of; for”
      • inheritedProto-Italic*pro-
        • inheritedProto-Indo-European*pro- “forward, toward”
    • derivedAncient Greekπρό “before”
      • derivedLatinlac “milk”

    Sources