philter
/ˈfɪltər/
noun
- A magical drink or potion that is believed to make someone fall in love with the person who gives it.
- In the old story, the witch gave the prince a love philter to make him fall for the princess.
- She joked that her grandmother's special tea must have been a philter because it made everyone feel so happy.
- The play's plot revolves around a philter that causes everyone who drinks it to fall in love.