Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh -og
← Proto-Brythonic *-ọg (inherited)
← Proto-Celtic *-ākos (inherited)
← English -y (cognate)
← Irish -ach (cognate)
← Scottish Gaelic -ach (cognate)
← Manx -agh (cognate)
← Proto-Indo-European *-eh₂kos (inherited)
← Proto-Indo-European *-eh₂ḱos (mention)
← Proto-Indo-European *-éh₂ (mention)
← Proto-Indo-European *-kos (mention)
← Proto-Indo-European *-ḱos (mention)
← Cornish -ek (cognate)
← Latin -ācus (cognate)
← Latin -īcus (mention)
← Middle Welsh -awc (inherited)

→ Welsh canolog (affix)
→ Welsh llwynog (affix)
→ Welsh marchog (affix)
→ Welsh swyddog (affix)
→ Welsh Efrog (affix)
→ Welsh cyhyrog (affix)
→ Welsh gwernog (affix)
→ Welsh dwyieithog (affix)
→ Welsh cyfoethog (affix)
→ Welsh barfog (compound)
→ Welsh cyfartalog (affix)
→ Welsh clywedog (affix)
→ Welsh cymydog (suffix)
→ Welsh ysgyfarnog (affix)
→ Welsh cymylog (affix)
→ Welsh cefnog (affix)
→ Welsh poblog (affix)
→ Welsh gweinidog (affix)
→ Welsh goludog (affix)
→ Welsh ariannog (affix)
→ Welsh euog (affix)
→ Welsh cyfrannog (affix)
→ Welsh arfeddog (affix)
→ Welsh cyffylog (suffix)
→ Welsh copog (suffix)
→ Welsh torchog (affix)
→ Welsh -gar (compound)
→ Welsh llythrennog (affix)
→ Welsh selog (affix)
→ Welsh llamhidog (affix)
→ Welsh Cristnogol (affix)
→ Welsh Cristnogaeth (affix)
→ Welsh sefydlog (affix)
→ Welsh asgellog (affix)
→ Welsh heulog (affix)
→ Welsh serchog (affix)
→ Welsh canghennog (suffix)
→ Welsh talentog (suffix)
→ Welsh llaethog (suffix)
→ Welsh awelog (affix)