Etymology

ally

al·ly
A1L1L1Y4

Today it means: To unite or form a connection between (people or things), as between families by marriage, or between states by confederacy, league, or treaty. Full definition →

Middle English allien ← Anglo-Norman alier ← Middle French alier
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ally · verb1

  1. Proto-Indo-European · derived from*leyǵ-“to bind, tie”
  2. Latin · derived fromalligāre
  3. Old French · derived fromalier“to join together, unite; to alloy (metals); (cooking) to combine ingredients”
  4. Middle French · derived fromalier
  5. Anglo-Norman · derived fromalier
  6. Middle English · inherited fromallien
  7. English todayally

From Middle English allien, alien (“to form an alliance, associate, join; to become an ally; to introduce (someone) as an ally; to marry; to become related (to someone); to attack, engage in combat; to combine; (cooking) to combine ingredients, especially to bind them together”) [and other forms], from Anglo-Norman alier, allier, Middle French alier, allier [and other forms], and Old French alier (“to join together, unite; to alloy (metals); (cooking) to combine ingredients”) (modern French allier), from Latin alligāre, the present active infinitive of alligō, adligō (“to bind around, to, or up (something), bandage, fasten, fetter, tie; to hold fast; to detain, hinder”), from al-, ad- (intensifying prefix) + ligō (“to bind, tie; to bandage, wrap around; to unite”) (from Proto-Indo-European *leyǵ- (“to bind, tie”)). Doublet of allay, alligate, alloy, and ligament.

ally · noun, noun2

  1. Old French · derived fromalier
  2. Middle French · derived fromalier
  3. Anglo-Norman · derived fromalier
  4. Old French · derived fromalliiet“military or political ally”
  5. Middle French · derived fromallié
  6. Anglo-Norman · derived fromallié
  7. Middle English · inherited fromallie
  8. English todayally

From Middle English allie, alie [and other forms], probably partly: * from allien (verb): see etymology 1; and * from Anglo-Norman allié, alié, alyé, allyé, Middle French allié, alié, allyé (“associate, supporter; friend; relative; person, state, etc., associated or united with another by alliance or treaty”), and Old French alliiet (“military or political ally”) (modern French allié), a noun use of the past participle of Anglo-Norman alier, allier, Middle French alier, allier, and Old French alier (verb): see etymology 1.

ally · noun3

See alley.

Ally · proper noun4

Diminutives + -y.

Words from the same roots

Latinalligāre all →

alloy

Proto-Indo-European*leyǵ- all →

obligationliaisonleech

Etymology from Wiktionary, CC BY-SA 4.0.