Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin agō

→ English abactor (mention)
→ English action (mention)
→ English actor (mention)
→ English cogent (mention)
→ English actress (mention)
→ English purge (mention)
→ English exactitude (mention)
→ English agenda (mention)
→ English agile (mention)
→ English agendum (mention)
→ English mitigate (mention)
→ English reaction (mention)
→ English prodigal (mention)
→ English redact (mention)
→ English exact (mention)
→ English litigate (mention)
→ English intransigent (affix)
→ English actuate (mention)
→ English navigate (mention)
→ English coagulate (mention)
→ English circumnavigate (mention)
→ English cogitabund (mention)
→ Breton mont (cognate)
→ Catalan agenda (mention)
→ Catalan actuar (mention)
→ Czech akt (mention)
→ Welsh mynd (cognate)
→ Danish age (cognate)
→ Danish aktiv (mention)
→ Danish akt (mention)
→ Danish aktuel (mention)
→ German Agentur (derived)
→ German Akte (derived)
→ Lower Sorbian reagowaś (mention)
→ Lower Sorbian reagěrowaś (mention)
→ Spanish agenda (mention)
→ Spanish agente (mention)
→ Spanish actuar (mention)
→ Spanish acta (mention)
→ Spanish agir (inherited)
→ Spanish purgar (mention)
→ Spanish mitigar (mention)
→ Spanish pródigo (affix)
→ Finnish ajaa (mention)
→ Faroese aka (cognate)
→ French agenda (mention)
→ Old French hacer (inherited(fro/es))
→ Franco-Provençal ag·ir (borrowed)
→ Galician axiña (derived)
→ Old Swedish aka (cognate)
→ Ancient Greek ἄγω (cognate)
→ Indonesian aktor (mention)
→ Indonesian akta (mention)
→ Indonesian akte (mention)
→ Indonesian akting (mention)
→ Icelandic aka (cognate)
→ Italian azione (mention)
→ Italian agile (mention)
→ Italian agire (inherited)
→ Italian agenzia (mention)
→ Italian attuare (mention)
→ Latin abactor (mention)