Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Spanish acertar
← English ascertain (cognate)
← Spanish a- (affix)
← Spanish certus (affix)
← Spanish -ar (affix)

→ English ascertain (cognate)
→ Catalan encertar (cognate)
→ Spanish acertijo (mention)
→ Spanish acertado (mention)
→ Spanish desacertar (affix)