46%RatingSave Gender Masculine Usage Italian, Portuguese, Spanish (Rare) Pronounced Pron. /ˈɡlau̯.ko/(Italian, Spanish) /ˈɡlaw.ku/(Portuguese) [key·simplify] Meaning & HistoryExpand Links Italian, Portuguese and Spanish form of Glaucus. Related NamesFamily Tree·Details Other Languages & CulturesGlaucus, Glaukos(Greek Mythology) PopularityDetails Last ranked #845 in 2000 Brazil (by decade) Categories blue, colors, gray, Italian Westerns, rare Spanish