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 *aiwaz

→ English ay (derived)
→ English aye (mention)
→ Old English æwnian (cognate)
→ Old English a (derived)
→ Danish evig (mention)
→ Danish evindelig (mention)
→ Danish ægte (mention)
→ German Ehe (mention)
→ German jeder (derived)
→ Estonian aeg (derived)
→ Finnish aika (cognate)
→ Finnish avio (mention)
→ Finnish aivan (derived)
→ West Frisian iuw (inherited)
→ Middle Low German e (inherited)
→ Middle Low German ewich (inherited)
→ Old High German ewa (inherited)
→ Gothic 𐌰𐌹𐍅𐍃 (inherited)
→ Alemannic German Ee (mention)
→ Hunsrik immer (derived)
→ Limburgish iew (inherited)
→ Dutch eeuw (inherited)
→ Old Norse æ (mention)
→ Old Norse ey (derived)
→ Old Norse ævi (mention)
→ Old Norse æghwilc (derived(non/ang))
→ Old Norse Eilífr (derived)
→ Old Norse Eiríkr (cognate)
→ Old Dutch io (inherited)
→ Old Saxon eo (inherited)
→ Swedish e (mention)
→ Swedish e- (derived)