Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Galician ferro
Latin ferrum (inherited)
Old Portuguese ferro (inherited)

Galician ferra (mention)
Galician ferreiro (suffix)
Galician ferrar (suffix)
Galician ferraría (suffix)
Galician ferrado (link)
Galician Ferro (mention)
Galician ferrón (mention)
Galician ferrollo (mention)
Galician ferraxe (link)
Galician ferreiría (suffix)
Galician ferreño (suffix)
Galician ferrudo (suffix)
Galician ferro doce (mention)