gaslight
noun
[ ˈɡaslʌɪt ]
• a type of lamp in which an incandescent mantle is heated by a jet of burning gas.
• "an era of gaslights and horse-drawn carriages"
gaslight
verb
• manipulate (someone) by psychological means into doubting their own sanity.
• "in the first episode, Karen Valentine is being gaslighted by her husband"
