From French flanc, from Middle French flanc, from Old French flanc, of Germanic origin, probably Frankish *hlanca, from Proto-Germanic *hlankaz (“flexible", "to bend”), from Proto-Indo-European *kleng- (“to bend”). Akin to Old High German hlanca (“loin”), Middle High German lanke (“hip joint”) (German lenken (“to bend, turn, lead”)), Old English hlanc (“loose, slender, flaccid, lank”). More at English lank.

• Hyphenation: flan‧co

flanco m (plural flancos)

1. flank

• “flanco”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “flanco”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Borrowed from French flanc, from Middle French flanc, from Old French flanc, of Germanic origin, probably specifically from Frankish *hlanca, from Proto-Germanic *hlankaz (“flexible; slender”), from Proto-Indo-European *kleng- (“to bend”).

Akin to Old High German hlanca (“hip, flank, loin”), Middle High German hip, flank, loin, German Gelenk (“joint”), Old English hlanc (“loose, slender, flaccid, lank”). More at English lank.

• IPA^(key): /ˈflanko/ [ˈflãŋ.ko]

• Audio (Colombia):

  (file)

• Rhymes: -anko
• Syllabification: flan‧co

flanco m (plural flancos)

1. flank

• “flanco”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025