Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Welsh gwaith
← Breton gwezh (cognate)
← Proto-Brythonic *gweiθ (inherited)
← Proto-Celtic *wextā (inherited)
← Irish feacht (cognate)
← Proto-Indo-European *weǵʰ- (derived)
← Cornish gweyth (cognate)
← Old Irish fecht (cognate)
← Middle Welsh gweith (inherited)

→ Breton gwezh (cognate)
→ Welsh noswaith (compound)
→ Welsh gweithio (suffix)
→ Welsh dwywaith (affix)
→ Welsh gweithiau (affix)
→ Welsh unwaith (compound)
→ Welsh teirgwaith (compound)
→ Welsh rhwydwaith (compound)
→ Welsh gemwaith (affix)
→ Welsh peirianwaith (affix)
→ Welsh crefftwaith (affix)
→ Welsh campwaith (affix)
→ Welsh plethwaith (affix)
→ Welsh adeiladwaith (affix)
→ Welsh di-waith (affix)
→ Welsh gweithredu (suffix)
→ Welsh gweithlu (compound)
→ Welsh gweithdy (affix)
→ Old Irish fecht (cognate)