Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *h₁eyH-

→ English ice (derived)
→ English eckle (derived)
→ Old English is (derived)
→ Old English iw (mention)
→ Danish is (derived)
→ German Eis (derived)
→ Persian یخ (inherited)
→ Faroese ísur (derived)
→ Central Franconian Eis (derived)
→ Old High German is (derived)
→ Alemannic German isch (inherited)
→ Alemannic German éisch (inherited)
→ Hunsrik Eis (derived)
→ Indonesian es (derived)
→ Italian Islanda (root)
→ Italian islandese (root)
→ Italian islandico (root)
→ Marshallese aij (derived)
→ Marshallese aej (derived)
→ Norwegian Bokmål is (derived)
→ German Low German Ies (derived)
→ Norwegian Nynorsk is (derived)
→ Old Norse íss (derived)
→ Old Saxon is (derived)
→ Elfdalian ais (derived)
→ Pennsylvania German Eis (derived)
→ Swedish is (derived)
→ Vilamovian ajs (derived)
→ Old Armenian եղեամն (inherited)
→ Yiddish אײַז (derived)