What's the noun for peppier? Here's the word you're looking for.
pepper
A plant of the family Piperaceae.
(uncountable) A spice prepared from the fermented, dried, unripe berries of this plant.
(Britain, US, Ireland and Canada) A bell pepper, a fruit of the capsicum plant: red, green, yellow or white, hollow and containing seeds, and in very spicy and mild varieties.
(baseball) A game used by baseball players to warm up where fielders standing close to a batter rapidly return the batted ball to be hit again
(cryptography) A randomly-generated value that is added to another value (such as a password) prior to hashing. Unlike a salt, a new one is generated for each value and it is held separately from the value.