Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Irish acht
← Irish achtachán (link)
← Latin āctus (borrowed)
← Old Irish acht (inherited)

→ Irish ach (alter)
→ Irish nuacht (suffix)
→ Irish ailtireacht (suffix)
→ Irish ainrialtacht (suffix)
→ Irish sinsearacht (suffix)
→ Irish poblacht (suffix)
→ Irish lachtacht (suffix)
→ Irish araíonacht (suffix)
→ Irish adamhacht (suffix)
→ Irish rothaíocht (suffix)
→ Irish uimhríocht (suffix)
→ Irish ancaireacht (suffix)
→ Irish deoraíocht (suffix)
→ Irish íolacht (suffix)
→ Irish iarnua-aoiseacht (confix)
→ Irish guaillíocht (suffix)
→ Irish aonchiallacht (confix)
→ Irish aonfhoirmeacht (confix)
→ Irish aonghnéitheacht (confix)
→ Irish aontoilíocht (confix)
→ Irish aigeantacht (suffix)
→ Irish sféarúlacht (suffix)
→ Irish clóchuradóireacht (suffix)
→ Irish clódóireacht (suffix)
→ Irish clódóireacht (suffix)
→ Irish saighdeoireacht (suffix)
→ Irish faillitheacht (suffix)
→ Irish nósmhaireacht (suffix)
→ Irish scagaireacht (suffix)
→ Irish scagadóireacht (suffix)
→ Irish scagacht (suffix)
→ Irish ailléirgineacht (suffix)
→ Irish heitrighnéasacht (confix)
→ Irish hipitíoróideacht (confix)
→ Irish heitristíleacht (confix)
→ Irish smutaireacht (suffix)
→ Irish heitreatallacht (confix)
→ Irish bláthadóireacht (suffix)
→ Irish eagraíocht (suffix)
→ Irish banaltracht (suffix)