Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English oct
← English octal (mention)

→ English octillion (confix)
→ English octoxide (prefix)
→ English octad (confix)
→ English octene (confix)
→ English octyne (confix)
→ English octose (confix)
→ English octlet (confix)
→ English octennial (confix)
→ English octree (prefix)
→ English octangle (prefix)
→ English octangular (prefix)
→ English octatomic (prefix)
→ English octoid (confix)
→ English octaqua (prefix)