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

• deisms
• deist
• deistic
• deistical
• deistically
• deists
• deities
• deity
• deixes
• deixis
• deject
• dejecta
• dejected
• dejectedly
• dejectedness
• dejectednesses
• dejecting
• dejection
• dejections
• dejectory
• dejects
• dejeune
• dejeuners
• dejeunes
• de jure