Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English irrational
← Latin irratiōnālis (derived)
← Latin ir- (mention)
← Latin ratiōnālis (mention)

→ English rational (link)
→ English rational (link)
→ English rational (link)
→ English rational (link)
→ English irrationalist (affix)
→ English irrationally (suffix)
→ English irrationality (suffix)
→ English irrationalism (suffix)
→ English irrationalness (suffix)
→ English irrationalize (suffix)
→ English irrationalistic (affix)
→ English nonirrational (prefix)