Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Galician xeonllo
Spanish hinojo (cognate)
Proto-Indo-European *ǵónu (inherited)
Latin (mention)
Latin genū (inherited)
Portuguese joelho (cognate)
Old Portuguese gẽollo (inherited)

Galician xeonlleira (suffix)
Galician axeonllar (confix)
Portuguese joelho (cognate)