Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old English fīftīene

→ English fifteen (inherited)
→ Middle English fiftene (mention)
→ Gothic 𐍆𐌹𐌼𐍆𐍄𐌰𐌹𐌷𐌿𐌽 (cognate)
→ Old Norse fimmtán (cognate)
→ Old Norse fimtán (cognate)
→ Old Saxon fiftein (cognate)
→ Yola vifteen (inherited)