Plus, gift
Perk, meaning an advantage or something extra, such as money or goods
gift
Prize
The root word of the word "pension" is the Latin word "pensio" which means payment or reward.
The Latin prefix "Extra" means something that is more than, beyond, or outside of. An example is the word "Extramarital" which means, outside of the marriage.
extra, prize, gift, reward, premium, dividend, advantage, gain, asset, icing on the cake
This might be the word "extra." If you have a supply of something, often that means you have extra.
Extraterrestrial is a word using the prefix extra- that means outside the world.
"Haith" is not a commonly used term in English. It could be a misspelling or a word from a specific context or dialect. More context would be needed to provide an accurate definition.
spare
it can be. to reward someone...or to get a reward...it is a noun and a verb