Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Germanic *attô

→ English dad (cognate)
→ Faroese Atli (derived)
→ North Frisian aatj (inherited)
→ Galician Atián (derived)
→ Galician Ateán (derived)
→ Gothic 𐌰𐍄𐍄𐌰 (inherited)
→ Alemannic German attu (inherited)
→ Alemannic German àttu (inherited)
→ Dutch ette (inherited)