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

→ English dictionary (root)
→ English abdicate (root)
→ English abdication (root)
→ English index (root)
→ English toe (root)
→ English toe (inherited)
→ English indicative (root)
→ English predicate (root)
→ English predicate (root)
→ English diction (root)
→ English diction (derived)
→ English teach (root)
→ English teach (derived)
→ English dictator (root)
→ English paradigm (root)
→ English token (root)
→ English token (derived)
→ English addiction (root)
→ English dedication (root)
→ English dictation (root)
→ English dictum (root)
→ English indicate (root)
→ English edict (root)
→ English addict (root)
→ English contradict (root)
→ English dictate (root)
→ English dedicate (root)
→ English prediction (root)
→ English indication (root)
→ English indict (root)
→ English vindictive (root)
→ English vengeance (root)
→ English preach (root)
→ English predict (root)
→ English interdict (root)
→ English interdict (derived)
→ English indicator (root)
→ English valedictorian (root)
→ English syndic (derived)
→ English valediction (root)
→ Old English ta (root)
→ Old English teon (root)
→ Old English tæcan (root)
→ Old English tacn (root)
→ Welsh dull (inherited)
→ Welsh tocyn (root)
→ Danish te (inherited)
→ Danish tå (root)
→ German zeigen (root)
→ German Zehe (root)
→ German Zehe (derived)
→ German Zeichen (root)
→ German Zeichen (derived)
→ German Zeh (root)
→ German Zeh (derived)
→ German zeihen (root)
→ German zeihen (derived)
→ Middle Dutch tien (root)
→ Greek δικαίωμα (root)
→ Middle English techen (root)
→ Middle English techen (derived)
→ Spanish tacha (derived)
→ Fala idel (derived)
→ Finnish taika (root)
→ Faroese tá (root)
→ Faroese tá (derived)
→ French diction (root)
→ French diction (inherited)
→ French tache (derived)
→ French syndic (root)
→ West Frisian tean (root)
→ Middle High German zehe (root)
→ Middle High German zehe (derived)
→ Westrobothnian tâ (root)
→ Westrobothnian tâ (inherited)
→ Central Franconian Zieh (derived)
→ Ancient Greek δειγματίζω (root)
→ Ancient Greek δίκαιος (root)
→ Ancient Greek ἐπίδειξις (root)
→ Ancient Greek δίκη (root)