Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old English ǣr

English ere (inherited)
English whilere (mention)
Old English ærdæg (prefix)
Old English ærgod (prefix)
Old English ærest (mention)
Old English ærlice (suffix)
Old English ær- (cognate)
Old English ærgenemned (prefix)
German eher (cognate)
Middle English er (inherited)
Old Frisian er (cognate)
Yola ear (inherited)