Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh dal
Proto-Brythonic *dalg- (inherited)
Welsh dala (alter)
Welsh (alter)
Welsh South Wales (alter)
Proto-Indo-European *delgʰ- (derived)
Latin indulgeo (cognate)

Welsh atal (affix)
Welsh dalfa (affix)
Welsh cynnal (affix)
Welsh daliwr (affix)
Welsh deiliad (affix)
Welsh daliad (affix)
Welsh yn dal (mention)