Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Luxembourgish op-

→ Luxembourgish optrieden (affix)
→ Luxembourgish opmaachen (affix)
→ Luxembourgish opstoen (affix)
→ Luxembourgish opféieren (affix)
→ Luxembourgish opsetzen (affix)
→ Luxembourgish opfaassen (affix)
→ Luxembourgish opschléissen (affix)
→ Luxembourgish operstoen (affix)
→ Luxembourgish opschloen (affix)
→ Luxembourgish opreegen (affix)
→ Luxembourgish opwéckelen (affix)