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 *þū

→ English thou (inherited)
→ Old English þu (inherited)
→ Cimbrian du (inherited)
→ Cimbrian diar (mention)
→ Danish du (inherited)
→ German du (inherited)
→ Middle Dutch du (inherited)
→ Middle English þou (inherited)
→ Faroese tú (derived)
→ West Frisian do (inherited)
→ Crimean Gothic tzo (inherited)
→ Middle Low German du (inherited)
→ Old Danish thu (inherited)
→ Old Swedish þu (inherited)
→ Old High German du (inherited)
→ Gothic 𐌸𐌿 (inherited)
→ Hunsrik du (inherited)
→ Icelandic þú (inherited)
→ Luxembourgish du (inherited)
→ Limburgish doe (inherited)
→ Mòcheno du (inherited)
→ Norwegian Bokmål du (inherited)
→ Norwegian Bokmål due (inherited)
→ Norwegian Bokmål duing (inherited)
→ Dutch du (inherited)
→ Norwegian Nynorsk du (inherited)
→ Old Norse þú (inherited)
→ Old Dutch thu (inherited)
→ Old Saxon thu (inherited)
→ Elfdalian du (inherited)
→ Scots thou (inherited)
→ Swedish du (inherited)
→ Yiddish דו (inherited)