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

→ Old English mægþ (suffix)
→ Old English hælþ (suffix)
→ Old English suht (suffix)
→ Old English treowþ (suffix)
→ Old English mæþ (suffix)
→ Old English iergþ (suffix)