Deliberately refrain from casting one's vote at a meeting where one is present.
Refrain from (something or doing something); keep from doing, especially an indulgence.
To pass a liquid through a porous substance; to filter.
To make (coffee) in a percolator.
To drain or seep through a porous substance.
To spread slowly or gradually; to slowly become noticed or realised.
A liquid that has been percolated.