Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English aghast
Old English a- (inherited)
Old English gæstan (mention)
German er- (cognate)
Middle English agast (inherited)
Middle English agasted (mention)
Middle English agasten (mention)
Gothic 𐌿𐍃- (cognate)
Gothic 𐌿𐍃𐌲𐌰𐌹𐍃𐌾𐌰𐌽 (cognate)
Latin haerere (cognate)

English aghastness (suffix)
English flabbergast (mention)
English ghast (link)
English agazed (mention)