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

→ French oui (mention)
→ Old French oil (affix)
→ Old French oil (mention)
→ Old French oil (mention)
→ Old French oil (mention)
→ Old French oil (mention)
→ Occitan òc (cognate)
→ Old Occitan oc (mention)