philter
\ FIL-ter \ , noun;
1.A magic potion for any purpose.
2.A potion, charm, or drug supposed to cause the person taking it to fall in love, usually with some specific person.
Quotes:
Tell me now, fairy as you are - can't you give me a charm, or a philter , or something of that sort, to make me a handsome man ? "
-- Charlotte Brontë, "Jane Eyre"
Mariamne had told him it was a love philter and promised a large reward if he would get me to drink it without my knowledge.
-- Michel Tournier, Ralph Manheim, "The Four Wise Men"
Origin:
Philter originates from the Greek philtron , "love potion," which itself derives from the Greek philos "love of."
Dictionary.com
