1.NounA kind of potion, charm, or drug; especially a love potion intended to make the drinker fall in love with the giver. .mw-parser-output .defdate{font-size:smaller}
2.VerbTo impregnate or mix with a love potion.
"to philter a draught"
3.VerbTo charm to love; to excite to love or sexual desire by a potion.