Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *h₂eǵ-

→ English action (root)
→ English actor (root)
→ English cogent (root)
→ English ambiguous (root)
→ English act (root)
→ English digestion (root)
→ English active (root)
→ English agenda (root)
→ English agent (root)
→ English agile (root)
→ English agitate (root)
→ English gesticulate (root)
→ English ambassador (mention)
→ English onager (root)
→ English onager (derived)
→ English reaction (root)
→ English suggest (root)
→ English congestion (root)
→ English digest (root)
→ English digest (root)
→ English digestible (root)
→ English exact (root)
→ English gestation (root)
→ English gesticulation (root)
→ English react (root)
→ English squat (root)
→ English squatter (root)
→ English castigate (root)
→ English gesture (root)
→ English egestion (root)
→ English exigency (root)
→ English exigent (root)
→ English chastise (root)
→ English reactionary (root)
→ English agonic (derived)
→ English chasten (root)
→ English gesticulative (root)
→ English egest (root)
→ English egesta (root)
→ English chastisement (root)
→ Breton mont (derived)
→ Welsh mynd (derived)
→ Welsh dod (mention)
→ Greek άγω (mention)
→ Esperanto agiti (root)
→ Persian گوازه (mention)
→ Finnish ajaa (root)
→ Finnish ajaa (derived)
→ Faroese aka (root)
→ Faroese aka (derived)
→ French cogitation (root)
→ French cogitation (derived)
→ Irish ár (root)
→ Irish ágh (root)
→ Irish ágh (derived)
→ Irish amhas (mention)
→ Irish táin (root)
→ Irish táin (derived)
→ Westrobothnian aak (root)
→ Westrobothnian aak (derived)
→ Old Swedish aka (root)
→ Old Swedish aka (derived)
→ Old High German ambaht (mention)
→ Ancient Greek ἄγω (root)
→ Ancient Greek ἄγω (mention)
→ Ancient Greek ἀγών (root)
→ Ancient Greek μασχάλη (mention)
→ Ancient Greek ἄξιος (root)
→ Ancient Greek ἄναξ (mention)
→ Ancient Greek ἄναξ (mention)
→ Ancient Greek ἀγωγή (root)
→ Ancient Greek ἀναγωγή (root)
→ Ancient Greek ἀγός (root)
→ Ancient Greek ἀγός (inherited)
→ Ancient Greek ὄγμος (mention)
→ Ancient Greek ἀρωγή (root)
→ Ancient Greek ἀξιόχρεως (root)
→ Ancient Greek προσαγωγός (root)
→ Ancient Greek ὁπλιταγωγός (root)
→ Indonesian aktor (root)