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

English ferretto (mention)
Dalmatian fiar (cognate)
Spanish hierro (cognate)
Friulian fiêr (cognate)
Italian ferreo (suffix)
Italian ferrovia (prefix)
Italian ferraio (suffix)
Italian ferroviario (prefix)
Italian ferroso (suffix)
Italian ferromagnetico (prefix)
Italian ferrare (suffix)
Italian ferroelettrico (prefix)
Italian ferroelettricità (prefix)
Italian ferraglia (suffix)
Italian ferrovecchio (prefix)
Italian ferrotranviario (prefix)
Italian ferrame (suffix)
Italian ferrocianuro (prefix)
Italian ferrigno (suffix)
Italian ferrista (affix)
Italian ferrobatterio (prefix)
Italian ferrocemento (prefix)
Italian ferrochina (prefix)
Italian ferrocianidrico (prefix)
Italian ferrocromo (prefix)
Italian ferrofilotranviario (prefix)
Italian ferrolega (prefix)
Italian ferromodellismo (prefix)
Italian ferromodellista (prefix)
Italian ferropentacarbonile (prefix)
Italian ferrotipia (confix)
Italian ferrotipo (confix)
Italian intraferro (prefix)
Italian fildiferro (compound)
Italian posaferro (prefix)
Italian -eo (mention)
Italian bruciaferro (compound)
Italian paldiferro (mention)
Italian ferroelettrete (prefix)
Italian ferrofluidodinamica (prefix)
Italian ferromagnete (prefix)