Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin ligo
Proto-Indo-European *leyǵ- (root)
Proto-Indo-European *leyǵ- (derived)

English ligand (mention)
English rely (mention)
English oblige (mention)
English ligation (derived)
English alligation (mention)
English alligate (mention)
Middle English lien (derived)
Spanish ligando (mention)
Spanish ligazón (derived)
Spanish legón (inherited)
Galician ligazón (derived)
Galician legón (inherited)
Italian ligando (mention)
Latin subligo (prefix)
Norman lian (mention)
Portuguese ligando (mention)