Portuguese rádio

← English radio (cognate)

← Spanish radio (cognate)

← French radium (borrowed)

← French radioactif (mention)

← Latin -ium (mention)

← Latin radius (borrowed)

← Portuguese raio (doublet)

← Portuguese frâncio (link)

← Portuguese actínio (link)

→ Portuguese raio (doublet)

→ Portuguese raiar (link)