(noun)
a great liking or enjoyment for something, or the pleasurable anticipation of something;
e.g. He though with relish of the wonderful experiences he would have.
(noun)
a sauce or condiment, typically made of chopped and seasoned fruits and/or vegetables, used to add flavor to food;
e.g. She added relish to the sandwich to make it spicier.
(noun)
in old usage, a characteristic flavor or distinctive quality of something, especially one that is appetizing;
e.g. She really enjoyed the relish of the sauce with the vegetables.
(verb)
to have a pleasant or distinctive taste/flavor, or to give something a pleasant flavor, by or as if by adding relish (the condiment);
e.g. She took care to relish the meat well before serving it;