Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *tHk-

→ English reticence (mention)
→ Spanish tacer (mention)
→ Faroese tiga (mention)
→ French taire (mention)
→ Italian tacere (mention)
→ Latin taceo (mention)
→ Romanian tăcea (mention)