Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Romanian eu
← Proto-Indo-European *éǵh₂ (inherited)
← Latin ego (inherited)
← Portuguese eu (cognate)

→ Portuguese eu (cognate)
→ Romanian mă (link)
→ Romanian mă (link)
→ Romanian îmi pare rău (mention)
→ Romanian supraeu (prefix)
→ Istro-Romanian io (cognate)
→ Aromanian io (cognate)
→ Aromanian iou (cognate)
→ Sardinian eo (cognate)