An interesting Spanish word I learnt recently is hongo [ˈonɡo], which means fungus, fungal growth, mushroom, toadstool, bowler hat and derby. As this appears very different to words for mushroom in other Romance languages, such as champignon in French, I wondered where it came from.

Hongo comes from Old Spanish fongo (mushroom), from Latin fungus (mushroom, fungus, fungal infection, candle-snuff, dolt, idiot), from sfungus, from Ancient Greek σπόγγος (spóngos – spongue, tonsil), the origins of which are unknown [source].

Words from the same roots include sfungjer (sponge) in Albanian, սպունգ [spunɡ] (sponge) in Armenian, sponge in English, spugna (sponge, drunkard) in Italian, and сунѓер [ˈsuɲɟɛr] (sponge) in Macedonian [source].

Related words and expressions in Spanish include:

• hongo venenoso = toadstool
• nube de hongo = mushroom cloud
• sombrero hongo = bowler hat [source]
• valer hongo = worthless – colloquial, vulgar – used in Chile [source]

Other words from mushroom in Spanish include:

• champiñón, which means (button) mushroom, fungus or mold, and was borrowed from French champignon (mushroom, fungus) [source]
• seta, which is used in Latin America to mean mushroom, and possibly comes from Ancient Greek σηπτά (septá – lost things), from σηπτός (septos) [source]
• callampa = mushroom or umbrella, and in the plural, callampas, shanty town. It’s used in Bolivia, Chile, Ecuador and Peru, and comes from Quechua qallampa or Aymara qallampa [source]

The French word champignon (mushroom, fungus, fungal infection, accelerator pedal), comes from Vulgar Latin campāniolus (mushroom, lit. ‘grows in the field’), from Late Latin campāneus (of or pertaining to the fields), from Latin campānia (plain, countryside surrounding a city, cultivatable land), from campus* (open flat level ground, a plain, a natural field), from Proto-Indo-European kh₂ém-po-s, from kh₂emp- (to bend, curve, smooth) [source].

Incidentally, the English word mushroom comes from Middle English muscheron (mushroom, fungus, toadstool, a surname), from Anglo-Norman musherum, from Old French mousseron / moisseron (mushroom), possibly from Old French mosse/moise (moss) [source].