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 *peḱ-

→ English fight (derived)
→ English peculiar (root)
→ English fee (root)
→ English fax (derived)
→ English impecunious (root)
→ English fain (derived)
→ English pecuniary (root)
→ English pecunious (root)
→ Afrikaans veg (inherited)
→ Old English fægen (derived)
→ Cebuano payts (derived)
→ Cebuano payt (derived)
→ German fechten (derived)
→ Middle Dutch vechten (derived)
→ Persian پشم (root)
→ Persian پشم (inherited)
→ Persian پشمین (root)
→ Persian پشمین (inherited)
→ Faroese fegin (derived)
→ Faroese faks (derived)
→ Westrobothnian fägjän (inherited)
→ Gothic 𐍆𐌰𐌷𐌴𐌸𐍃 (root)
→ Gothic 𐍆𐌰𐌷𐌴𐌸𐍃 (derived)
→ Ancient Greek πέκω (derived)
→ Ancient Greek κτείς (derived)
→ Gujarati પાંપણ (mention)
→ Hindi पशु (root)
→ Hindi पंखुड़ी (root)
→ Icelandic fax (mention)
→ Icelandic feginn (derived)
→ Italian pecunia (root)
→ Latin pecunia (root)
→ Latin pecten (derived)
→ Latin pecus (root)
→ Latin pecu (root)
→ Latin pecto (derived)
→ Latin peculiaris (root)
→ Latin peculium (root)
→ Latin pecuniarius (root)
→ Low German fechten (derived)
→ Dutch vechten (derived)
→ Dutch vacht (mention)
→ Old Norse fax (root)
→ Old Norse fax (mention)
→ Old Norse fé (root)
→ Old Norse fær (root)
→ Old Norse fága (root)
→ Old Norse fága (inherited)