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Etymology data from Wiktionary via Wiktextract (CC BY-SA 4.0). Chinese character data from the 說文解字, the Taiwan MOE 國語辭典簡編本 (CC BY-ND 3.0 TW) and HSK/TOCFL lists.

Explanations are written by a local model (gemma4) and only published after a verification pass against the cited sources. How it works.

English

a-

/ə/
Forming verbs with the sense away, up, on, out.

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    Origin

    Etymology 1

    From Middle English a- (“up, out, away”), from Old English ā-, originally *ar-, *or-, from Proto-West Germanic *uʀ-, from Proto-Germanic *uz- (“out-”), from Proto-Indo-European *uds- (“up, out”). Cognate with Old Saxon a-, German er-.

    Etymology 2

    From Middle English a- (“on”), derived from unstressed Middle English an (“on”), from Old English an (“on”). See a (preposition, on, to, in, etc.)

    Etymology 3

    From Middle English a-, a variant form of y-, from Old English ġe-, from Proto-West Germanic *ga-, from Proto-Germanic *ga-, from Proto-Indo-European *ḱóm (“with”).

    Etymology 4

    From Anglo-Norman a-, from Old French e-, from Latin ex-.

    Etymology 5

    From Ancient Greek ἀ- (a-), preconsonantal form of ἀν- (an-). Distant doublet of un-.

    Etymology 6

    Assimilated form of ad- before b, sc, sp, st, and sometimes m. From Middle English a-, from Middle French a-, from Latin ad (“towards”).

    Etymology 7

    From Latin ab (“of, off, from, away”).

    Etymology 8

    From Middle English a-, o- (“of”). See a (preposition, of).

    From Wiktionary, CC BY-SA 4.0.

    Lineage

    • derivedAncient Greekἀ- “not”
      • inheritedProto-Hellenic*ə-
        • inheritedProto-Indo-European*n̥- “un-”
          • derivedProto-Indo-European*né “no, not”
    • inheritedMiddle Englisha- “of”
      • inheritedOld Englishā- “on, at”
        • derivedOld Englishar-
          • inheritedProto-West Germanic*uʀ-
            • inheritedProto-Germanic*uz- “out-”
              • inheritedProto-Indo-European*uds- “up, out”
      • derivedMiddle Englishan “and, if”
        • inheritedOld Englishon “in”
          • inheritedProto-West Germanic*ana
            • inheritedProto-Germanic*an “on, upon; on to”
              • derivedProto-Indo-European*h₂en- “on, onto”
                • derivedProto-Indo-Europeanġe-
                • inherited (ultimately)Proto-Indo-European*h₁ep-
      • inheritedOld Englishġe-
        • inheritedProto-West Germanic*ga-
          • inheritedProto-Germanic*ga- “with, together”
            • derivedProto-Indo-European*ḱóm “with”
              • derivedProto-Indo-European*ḱe “here; here”
              • derivedProto-Indo-European*sel- “home, dwelling, village”
              • derived (ultimately)Proto-Indo-European*ser- “to watch over, protect”
                • derivedProto-Indo-European*h₃reǵ- “to straighten”
              • derived (ultimately)Proto-Indo-European*deh₂- “to divide, share”
      • derivedMiddle Frencha-
        • derivedLatinad “towards”
          • inheritedProto-Italic*ad
          • derivedProto-Indo-European*ád “at; near”
          • derivedFrenchdroit “right”
            • derivedOld Frenchdroit
          • derivedLatincōnsuō “to sew together”
            • derivedLatincon- “together, with”
          • derived (ultimately)Proto-Indo-European*gʷerH- “to welcome, greet, praise”
          • derivedOld Frenchajouster
          • derived (ultimately)Proto-Indo-European*h₂éd “near, at”
          • derivedLatindīrēctus “laid straight; direct, straight; level; upright”
            • derivedProto-Indo-European*dwís “in two, apart”
            • partLatindis- “assunder, apart, utterly”
            • partLatinrēctus “led straight along; correct, right; just, lawful”
          • derivedLatinvallis
            • inheritedProto-Indo-European*welH- “to turn, wind, roll”
          • derivedLatinmollire
          • derivedFrenchmou
            • derivedLatinmolliō “soften”
    • derivedAnglo-Normana-
      • derivedOld Frenche-
        • derivedLatinex- “out of”
          • derivedLatinex “out”
            • inheritedProto-Italic*eks
            • derivedLate Latincambiō “I exchange”
            • derivedMedieval Latinwardare
            • derivedAncient Greekαὔρα “breath”
            • derivedMiddle English-ing
            • derivedFrenchlancer “to dart, throw”
          • derivedAncient Greekτῦφος “fever”
            • derivedProto-Indo-European*dʰewbʰ- “plug, peg, wedge”
          • derivedLate Latincappa “cape, cloak”
            • derivedLatincapitulāre
          • derivedOld Frenchcoche “notch”
          • derivedFrankish*friþu “security, peace”
            • derivedProto-Germanic*friþuz “peace”
          • derivedFrenchexpatrier
          • derivedProto-Indo-European*(s)ker- “to cut; shorten; skimp”
          • derivedVulgar Latin*catafalcum “viewing stage”
            • derivedAncient Greekκᾰτᾰ- “down”
          • derivedProto-Indo-European*káput “head”
            • derivedProto-Indo-European*kap- “to take, grasp, hold”
          • derivedGerman-ine
    • derivedLatinab “of, off, from, away”
      • inheritedProto-Italic*ap
        • inheritedProto-Indo-European*h₂epó “away”
      • derivedAncient Greekσκοπός “watcher”
        • partAncient Greekσκέπτομαι “to examine; to look at; to consider, think”
        • partAncient Greek-ός

    Related: English un- (doublet), Old Saxon a-, German er-

    Words built on it: around, away, a-building

    Meanings

    prefix
    1. Forming verbs with the sense away, up, on, out.
    2. Forming verbs with the sense of intensified action.

    Sources

    • Wiktionary (via Wiktextract / kaikki.org) — CC BY-SA 4.0
    • Wiktionary: a-