Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Norwegian Nynorsk -a-
← Norwegian Nynorsk -e- (mention)
← Old Norse -a (mention)
← Old Norse -ar (mention)

→ Norwegian Nynorsk ferdamann (affix)
→ Norwegian Nynorsk dølahest (affix)
→ Norwegian Nynorsk dølamål (affix)
→ Norwegian Nynorsk strandabu (affix)
→ Norwegian Nynorsk merraflåar (affix)