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

• Hydrangeaceae
• hydrangeas
• hydrant
• hydranth
• hydranths
• hydrants
• hydrargyral
• hydrargyrism
• hydrargyrisms
• hydrargyrum
• hydrargyrums
• hydrarthroses
• hydrarthrosis
• Hydras
• hydrate
• hydrated
• hydrated electron
• hydrated ion
• hydrates
• Johnny-cake
• Johnny-come-lately
• Johnny-head-in-air
• Johnny-raw
• Johnny Reb
• John o'dreams