foiling

verb

To cover or wrap with foil.

1. To prevent (something) from being accomplished.

   I was foiled by my superior

2. To prevent (someone) from accomplishing something.

   They foiled my plans.

3. To blunt; to dull; to spoil.

   to foil the scent in hunting

4. To tread underfoot; to trample.

verb

To expand a product of two or more algebraic expressions, typically binomials.

verb

To defile; to soil.

1. The act by which something is foiled; prevention of success.

   the foilings of our expectations

2. The track of game, such as deer, in the grass.
3. A foil.