Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Welsh -ion
← Breton -ien (cognate)
← Proto-Brythonic *-onos (inherited)
← Proto-Brythonic *-onā (mention)
← Cornish -yon (cognate)

→ Breton -ien (cognate)
→ Welsh minion (affix)
→ Welsh -on (link)
→ Welsh meibion (affix)
→ Welsh llysfeibion (affix)
→ Welsh blodion (affix)
→ Welsh cywion (affix)
→ Welsh brochion (affix)
→ Welsh ysgolion (affix)
→ Welsh cwynion (affix)
→ Welsh angylion (affix)
→ Welsh arwyddion (affix)
→ Welsh atebion (affix)
→ Welsh rhynion (affix)
→ Welsh -orion (compound)
→ Welsh -yddion (compound)
→ Welsh aromatherapyddion (affix)
→ Welsh disgyblion (affix)
→ Welsh -iedyddion (compound)
→ Welsh -edyddion (compound)
→ Welsh archangylion (affix)
→ Welsh hirgrynion (affix)
→ Welsh hirion (affix)
→ Welsh apostolion (affix)
→ Welsh acenion (affix)
→ Welsh acenion disgynedig (affix)
→ Welsh acenion dyrchafedig (affix)
→ Welsh acenion crwm (affix)
→ Welsh acenion crymion (affix)
→ Welsh anghenion (affix)
→ Welsh angorion (affix)
→ Cornish -yon (cognate)