ignis fatuus /igˈnis fatˈū-əs or fatˈŭ-ŭs/

1. Will-o'-the-wisp, the light produced by combustion of marsh-gas, which may lead a traveller into danger
2. Any delusive ideal or hope that may lead one astray

• nubbing-cheats
• nubbing-cove
• nubbing-coves
• nubbins
• nubble
• nubbled
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• nubblier
• nubbliest
• nubbling
• nubbly
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• nubecula
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• nubia
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• nubiferous
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• nubigenous
• nubile
• nubilities
• nubility
• nubilous
• nubs
• Nubuck