English radiant

← Middle French radiant (mention)

← Latin radians (mention)

← Latin radiantis (mention)

← Latin radiare (mention)

→ English radiantly (suffix)

→ English superradiant (prefix)

→ English unradiant (prefix)

→ English subradiant (prefix)

→ English radiantness (suffix)

→ English octoradiant (prefix)

→ Spanish radiante (cognate)

→ Portuguese solar (link)